Aikyam-Lab/Synoptic-Bench huggingface dataset:
130 AM EDT Fri Oct 31 2025 Low pressure will strengthen while tracking from the northern Middle Atlantic to Atlantic Canada through Friday.
- Temperatures remain cool over the weekend with highs in the low/mid 50s and lows in the low/mid 30s. Precip chances return again by late evening though and continue into Sat as a potent upper low dives into IL. Another trough then digs into the northern Lakes late Sun into Mon.
Updated at 202 AM CDT Fri Oct 31 2025 - Seasonably warm temperatures continue today before a cold front drops temperatures several degrees below normal for this time of year on Saturday.
147 AM EDT Fri Oct 31 2025 Dry high pressure will build into the area this weekend.
1209 AM CDT Fri Oct 31 2025 - Frost advisory in effect tonight for areas across east central and northeast Kansas that have yet to experience freezing conditions.
As such, tonight should be slightly cooler compared to this morning.
Most Middle Tennesseans should be able to get into the low 60s, with our Plateau brethren hanging back in the mid 50s for Halloween afternoon. The upper level low that will start to move into the region Saturday looks much more progressive. Nothing severe, but with the upper low in such close proximity, I just wouldn't rule it out.
Mean layer flow will begin to veer through tonight as large mid / upper level low over the northeast U.
Upper-level troughing over the Great Lakes/Ohio River Valley will dominate the weather across central and southeast Illinois this weekend. The main weather story for Saturday will be the cloudy and cool fall weather with highs only reaching the lower to middle 50s.
Those trick-or-treating tomorrow will see temperatures that are typical for the Halloween holiday -- initially in the low-mid 50s before falling into the 40s during the evening.
Continued lower heights aloft between these two waves is expected to bring cooler and windy weather to the area today. Highs in the low to mid 50s with winds gusting 20 to 25 MPH will lead to chilly end to October. Later tonight, the upper low moves over the area. The entire column looks to be near or below freezing, with the exception of the near surface. Even cooler day on Saturday with cloudy skies is expected.
1130 PM MDT Thu Oct 30 2025 - Breezy and colder tonight through Friday night behind a cold front. Further upstream, northwesterly flow gives way to upper level ridging across the Pacific NW. Cooler tomorrow as colder air spills into the Northern Plains tonight (850 temps 0C to -6C) into Friday with highs in the 30s to 40s; expect overnight lows Friday/Saturday morning into the teens and 20s.
- A cold front brings a low chance for rain showers and cooler temperatures on Saturday. Clear skies and light surface winds will lead to another chilly morning across the region, with sub-freezing temperatures expected across portions of northern and central Oklahoma. Even where temperatures remain a few degrees above freezing, sufficient low- level saturation is ongoing to support frost formation.
- A storm system and cold front Saturday to bring low rain chances, as well as a brief period of below normal temperatures.
An upper level low is meandering through the FA early this morning. Upstream, ridging is evident over the northwestern US.
An upper-level wave will pass to our northeast aloft, moving on the back end of a broader trough digging into the Great Lakes Region. Highs for Friday will be a bit cooler than today, with low-mid 50s over most of the area, while the higher terrain remains in the 30s-40s. Latest model data remains consistent with a secondary short wave digging down the back side of a long wave trough across the High Plains on Friday. Models also remain consistent with said system increasing mid and high level clouds across the region through the day on Friday, with all of the moisture being at and above H5, leading to a few sprinkles or flurries, at best, expected across the higher terrain Friday afternoon into the early evening.
Dry conditions will continue through Saturday with low chances (20-45%) for showers Saturday night along the Coastal Bend as another weak cold front that will swings across the area.
Weak warm advection ahead of that trough may allow temperatures to climb to nearly 60 across areas south of a roughly Rushville to Paris line, while north of I-74 more low clouds may hold temperatures in the low 50s through the afternoon. The arrival of this cooler air aloft will steepen low-mid level lapse rates enough that, despite the relatively dry airmass, there could be one or two instability-driven showers (or sprinkles) during the trick-or-treat timeframe north of roughly I-72, though the probability of measurable precipitation at any given location appears low at around 10-15%.
- Low rain chances (20-30%) for the Hill Country and east of the I-10/I-37 corridor Saturday as another cold front moves through the region. This will allow highs to inch upward a degree or two, with temperatures ranging from the lower 70s to near 80 degrees. This will help boost overnight lows into the lower 40s to lower 50s. The leading edge of a cold front will bring northwest to northerly winds to the southern Edwards Plateau Saturday morning, with a very gradual shift to northeast winds throughout the day across the remainder of south central Texas. Northwest flow aloft often over performs, and will continue to monitor incoming hi-res models to see if rain chances may need to be boosted slightly from Williamson County southeastward into the Highway 77 corridor and coastal plains.
130 AM EDT Fri Oct 31 2025 - Breezy and mostly dry behind a cold front today, with hazardous boating conditions across the coastal waters and a High Risk of rip currents at area beaches.
However, any freezing temperatures will be localized and fairly brief once again. There will be substantial cloud cover in advance of the trough this afternoon and evening. Highway 36 by mid-to- late evening, which would certainly be adequate time to get temperatures to fall to near/below freezing by daybreak Saturday. By this point, we will be well upstream of the still-strengthening upper low in the mid-Mississippi Valley and lower Ohio Valley region. However, recovery will be swift beyond Saturday, as upper ridging progresses into the central U. The upper flow will remain progressive, but the ridge should keep the storm track well to our north. ridging, suspect we may be on the dry/windy side of any such system that materializes.
Many locations expected to dip into the low 30s along and north of the Mogollon Rim.
There is some level of broad troughing that extends towards the Florida Peninsula in the mid-levels and upper-levels. Low temperatures Friday night will range from the low to mid 50s near the Lake O region to the low 60s for the interior and along the coasts.
The region remains under the influence of upper level northwesterly flow with scattered middle level clouds moving through the pattern associated with an upper level low over Iowa. With high pressure, clearing skies and light winds, overnight temperatures will fall into the middle to upper 30s with dewpoints in the lower to middle 30s as well. An upper level low will shift across the northern plains into the Great Lakes region through the day Saturday. There is a rather slight chance that a cold front associated with the upper low may be able to squeeze our some very light moisture Saturday afternoon. Behind the cold front on Saturday will come a reinforcing round of cold air.
The upper-level low influencing the area will continue lifting northeast across the lower Lakes today and into New England tonight. Overnight lows look to drop back into the low to mid 30s, with the coolest readings away from the lakes and in areas where skies thin sufficiently. Lake induced showers look to continue, especially for areas downwind of Lake Michigan, as cold air over relatively warmer lake waters maintains instabilty.
A long-running trough exists across the eastern CONUS as Hurricane Melissa continues on its northeastward track toward the North Atlantic. An upper low over WV in the large scale trough continues to provide rain to areas east of I-69 this afternoon up until around 21z as the main area of isentropic omega departs. Behind this upper low, another area of vorticity dives south of the area and this swivels the low level trajectories to more northwesterly and then westerly allowing CAA over an anomalously warm Lake MI.
1225 AM PDT Fri Oct 31 2025 1225 AM PDT Fri Oct 31 2025 * Dry and fair weather thru this weekend under high pressure 1225 AM PDT Fri Oct 31 2025 The current forecast is on track.
257 AM MDT Fri Oct 31 2025 - After a seasonably cool Friday, warmer temperatures expected this weekend while weather conditions remain dry.
725 AM EDT Fri Oct 31 2025 - Much cooler and drier air continues into the weekend. A closed upper low has moved northeastward and is now located over the eastern Great Lakes, while broad upper troughing remains over the eastern half of the CONUS. On the surface, a deep low pressure system is located over the New England region with the associated cold front extending southward through the western Atlantic. Closer to Florida, a 1020 MB high pressure center is located near TX/LA and will ridge eastward across Florida to produce pleasant and much cooler weather to close out the work week. This pleasant and cooler weather will continue into the weekend as this high pressure center tracks east-northeastward through the southeast U.
1023 AM EDT Fri Oct 31 2025 A cold front will pass through early this morning, then high pressure builds toward the area this weekend.
337 AM MDT Fri Oct 31 2025 - Slightly cooler than normal temperatures expected east of the Divide today, with temperatures around or just above normal west of the Divide. - Warmer temperatures arrive for the weekend.
Current surface analysis places trough dropping through northern Minnesota into eastern/central North Dakota while high settles through southern Saskatchewan into central/eastern Montana. Upper level analysis places low along the North Dakota/Minnesota border with ridge over the western CONUS. Over our area, aforementioned low pressure system is resulting in some light rain/snow activity along with gusty northwesterly winds. For today, low to medium chances for light rain/light snow will continue through the morning before gradually tapering off from west to east, mainly over central North Dakota and the James River Valley, as upper low settles towards southern Minnesota. With the cooler air that has settled in, high temperatures are expected to be about 5 to 15 degrees below average, coolest in the west. Upper ridge builds in this weekend bringing a notable uptick in temperatures.
- Temperatures remain cool over the weekend with highs in the low/mid 50s and lows in the low/mid 30s. Precip chances return again by late evening though and continue into Sat as a potent upper low dives into IL. Another trough then digs into the northern Lakes late Sun into Mon. The analysis from yesterday showed the surface water temperatures warmer than normal (actual temperatures 13.
404 AM CDT Fri Oct 31 2025 - Scattered showers today into early Saturday from a passing cold front with a few possible snow flakes mixed in for the overnight hours. A weak low pressure system in the Northern Plains will dive southeast throughout the day today. Flow aloft over the Arrowhead and western Lake Superior will shift to the northeast, leading to weak CAA with a cold front moving southwest.
555 AM CDT Fri Oct 31 2025 - Low rain chances (20-30%) for the Hill Country and east of the I-10/I-37 corridor Saturday as another cold front moves through the region. This will allow highs to inch upward a degree or two, with temperatures ranging from the lower 70s to near 80 degrees. This will help boost overnight lows into the lower 40s to lower 50s. The leading edge of a cold front will bring northwest to northerly winds to the southern Edwards Plateau Saturday morning, with a very gradual shift to northeast winds throughout the day across the remainder of south central Texas. Northwest flow aloft often over performs, and will continue to monitor incoming hi-res models to see if rain chances may need to be boosted slightly from Williamson County southeastward into the Highway 77 corridor and coastal plains.
549 AM EDT Fri Oct 31 2025 - Areas of frost are possible tonight in valleys and other low- lying areas as temperatures fall into the lower and middle 30s.
Afternoon temperatures slightly cooler than yesterday, but remaining above season averages.
406 AM CDT Fri Oct 31 2025 - Cold front this evening brings a few brief showers, followed by cooler temperatures tomorrow.
628 AM CDT Fri Oct 31 2025 - Scattered showers today into early Saturday from a passing cold front with a few possible snow flakes mixed in for the overnight hours. A weak low pressure system in the Northern Plains will dive southeast throughout the day today. Flow aloft over the Arrowhead and western Lake Superior will shift to the northeast, leading to weak CAA with a cold front moving southwest.
759 AM EDT Fri Oct 31 2025 - Areas of frost are possible tonight in valleys and other low- lying areas as temperatures fall into the lower and middle 30s.
639 AM CDT Fri Oct 31 2025 Updated at 635 AM CDT Fri Oct 31 2025 - Seasonably warm temperatures continue today before a cold front drops temperatures several degrees below normal for this time of year on Saturday.
502 AM MDT Fri Oct 31 2025 - Slightly cooler than normal temperatures expected east of the Divide today, with temperatures around or just above normal west of the Divide. - Warmer temperatures arrive for the weekend.
1007 AM EDT Fri Oct 31 2025 Dry high pressure will build into the area this weekend.
654 AM EDT Fri Oct 31 2025 As yesterday's low pressure system continues to exit to the north, gusty winds and some scattered rain showers are expected today. Yesterday's low pressure system continues to depart the area to the north as it will move from New England to the Canadian Maritimes today. Winds could occasional gust between 40 and 50 mph at times this afternoon and evening, especially across the higher elevations. By late tonight, temperatures will become cool enough across some of the higher elevations of Central NY and northern Oneida County for the rain showers to mix with, or even change over to snow showers.
Stronger onshore flow will spread greater cooling into the coast and valleys for today with high temperatures for the coast and valleys a few degrees warmer for the weekend.
553 AM CDT Fri Oct 31 2025 - Cold front this evening brings a few brief showers, followed by cooler temperatures tomorrow.
540 AM MDT Fri Oct 31 2025 - After a seasonably cool Friday, warmer temperatures expected this weekend while weather conditions remain dry.
A ridge of high pressure remains over much of the western U. The forecast continues to trend toward a dry period as a ridge of high pressure aloft remains situated overhead keeping us locked into a pattern of terrifyingly pleasant weather for this time of year.
After high top out in the lower 60s this afternoon, the increasing cloud cover will help keep overnight lows in the lower to middle 40s for Saturday morning. Later this evening and overnight, the upper level low will move south essentially following the Mississippi River. As this occurs, a cold front will slide south through the region. The lower levels should remain dry however with showers falling from cloud bases around 8-10kft. Limited light rain or sprinkle chances will continue through Saturday as the front and upper low make their way slowly south.
The next disturbance to drive weather activity across the Four State Region is swiftly transiting the Upper Great Plains in an almost meridional pathway towards the Lower Mississippi River Valley. By the time it gets nearer to the area, more vorticity will be advected in the flow on the western periphery of the trough over the Mid-South to instigate an environment for mostly showers (thunderstorms can't be fully ruled out).
1131 AM EDT Fri Oct 31 2025 - Areas of frost are possible tonight in valleys and other low- lying areas as temperatures fall into the lower and middle 30s.
Suite of CAM guidance suggests any showers associated with the low will be quite sparse locally which is not surprising given a dry column and PWATs below 0. Separate from forcing associated with the upper low, areas south of I-70 will be brushed by the northern edge of an f-gen band behind the departing cool front, midday through Saturday afternoon.
The winds will help overnight lows stay a little warmer than recent days, at least out east.
Looking upstream, several lobes of vorticity are rotating around the large upper trof to our north, and the second and most significant of these waves will moving over our area tonight and Saturday. Under more extensive clouds tonight, lows in in the lower to mid 30s should be common through out the CWA.
As the high expands across the forecast area, clouds will attempt to clear out of western North Dakota, with light winds overnight and lows in the upper teens to mid 20s. A shallow, tilted upper ridge attempts to build over the northern Rockies this weekend.
- Slight rain chances (20 to 40 percent) for areas north of I-10 and east of I-37 Saturday as a weak cold front moves through the region. (Tonight through Saturday night) Broad and dry troughing across the central US will keep this South- Central Texas evening quiet and clear weather-wise. Highs Saturday should still manage to get into the 70s north of I-10 and the low 80s south. For Saturday night, the post-frontal air will mostly be noticed in the Hill Country with lows dipping back into the low 40s to mid 40s.
Satellite image shows low clouds and patchy to areas of fog in most of the interior westside valleys, and freezing fog in portions of the Klamath Basin, including areas of freezing fog in in and around Kalamth Falls. Therefore we may not see much if any sun for the afternoon once the low clouds burn off.
Lingering light rain is possible this evening, mainly south of Highway 200 as an upper low continues working to the southeast.
(This evening through Saturday night) A parade of weak cold fronts will traverse the Panhandles through the next 7 days, appearing every other day. Dry conditions continue tomorrow and in the wake of the cold front where high temperatures will drop to below average with highs ranging from the mid 50s to the lower 60s.
An upper level low is located just west of the Twin Cities metro this afternoon and continues to head slowly southeast. Light rain and drizzle is most widespread near the center of the upper low, with patchier drizzle within the cyclonic flow away from the center. The low will linger for the next several hours before heading into northeast Iowa later this evening. Clouds should gradually break up through the day as the trough exits and ridging returns. The one exception may be in the higher elevations of the Buffalo Ridge where wetbulb zero heights AGL are lower.
1000 AM MDT Fri Oct 31 2025 - Slightly cooler than normal temperatures expected east of the Divide today, with temperatures around or just above normal west of the Divide. - Warmer than normal temperatures arrive for the weekend.
Upper level analysis shows upper low centered across south-central MN.
- Temperatures remain cool over the weekend with highs in the low/mid 50s and lows in the low/mid 30s.
Cooler air building into the region Saturday will cap temperatures near or in the low 50s.
Updated at 1220 PM CDT Fri Oct 31 2025 - Cooler and a bit breezy on Saturday behind an early-day cold front.
At the surface, deep low pressure is centered over Connecticut, with a more diffuse open wave over the northern ND/MN. Still, with SLRs increasing to as high as 8-10:1 tonight courtesy of the cooling airmass, we could still pick up some measurable snowfall across the higher terrain of the western and north-central UP.
Meanwhile, an upper-level low is moving south from the Upper Midwest throughout with the trough axis moving through Texas on Saturday. At the surface, a cold front will also move south. While most of the area starts off capped on Saturday, the trough axis moving through will allow mid-level cooling of 850 hPa temps to erode this cap around the 3pm-5pm timeframe.
1117 AM MDT Fri Oct 31 2025 - Slightly cooler than normal temperatures expected east of the Divide today, with temperatures around or just above normal west of the Divide. - Warmer than normal temperatures arrive for the weekend.
1143 AM MDT Fri Oct 31 2025 - After a seasonably cool Friday, warmer temperatures expected this weekend while weather conditions remain dry.
1211 PM CDT Fri Oct 31 2025 Updated at 1209 PM CDT Fri Oct 31 2025 - A cold front brings a low chance for rain showers and cooler temperatures on Saturday. Clear skies and light surface winds will lead to another chilly morning across the region, with sub-freezing temperatures expected across portions of northern and central Oklahoma. Even where temperatures remain a few degrees above freezing, sufficient low- level saturation is ongoing to support frost formation.
201 PM EDT Fri Oct 31 2025 Gusty winds continue to ease tonight ahead of encroaching high pressure.
130 PM EDT Fri Oct 31 2025 - Areas of frost are possible tonight in valleys and other low- lying areas as temperatures fall into the lower and middle 30s.
116 PM EDT Fri Oct 31 2025 Gusty winds come to an end tonight as high pressure builds into the region.
Updated at 126 PM CDT Fri Oct 31 2025 - Seasonably warm temperatures continue today before a cold front drops temperatures several degrees below normal for this time of year on Saturday.
1237 PM CDT Fri Oct 31 2025 Updated at 1235 PM CDT Fri Oct 31 2025 - Seasonably warm temperatures continue today before a cold front drops temperatures several degrees below normal for this time of year on Saturday.
Otherwise, temperatures will range from near-30 across central KS to the lower 40s across southeast KS.
Updated at 1210 PM CDT Fri Oct 31 2025 - Dry conditions will remain through this evening with highs in the low to mid 60s.
Updated at 1200 PM CDT Fri Oct 31 2025 - A storm system and cold front affect the region tonight into Saturday, bringing low rain chances, as well as a brief period of below normal temperatures.
Seasonable conditions today as an upper level ridge centered to our west gradually shifts east. Winds will be light, with high clouds increasing this afternoon as an upper level trough approaches from the northwest. The ridge axis will pass overhead tonight and move east of our area on Saturday. Southwest flow aloft will increase, ushering in a warmer air mass, increasing high temperatures 5-10 degrees.
1231 PM MDT Fri Oct 31 2025 - Cooler than normal temperatures east of the Divide and near to above normal temperatures west of the Divide this afternoon.
Updated at 1228 PM CDT Fri Oct 31 2025 - A cold front brings a low chance for rain showers and cooler temperatures on Saturday. (Rest of today and tonight) Mid-level heights will decrease today as a mid-level trough pushes to the south across the Plains.
1208 PM CDT Fri Oct 31 2025 - Cold front this evening brings a few brief showers, followed by cooler temperatures tomorrow.
1218 PM CDT Fri Oct 31 2025 - Scattered showers today into early Saturday from a passing cold front with a few possible snow flakes mixed in for the overnight hours. A weak low pressure system in the Northern Plains will dive southeast throughout the day today. Flow aloft over the Arrowhead and western Lake Superior will shift to the northeast, leading to weak CAA with a cold front moving southwest.
The main story today and through the weekend, however, will be the persistent influence of high pressure over the region. Current 500 mb RAP analysis places the axis of a high amplitude ridge approximately along the West Coast.