Heat indices topped 110 degrees across most of southern Illinois in the afternoon. Peak heat indices ranged from 110 at Metropolis to 114 at Carbondale and 116 at Carmi. Along the Interstate 64 corridor, heat indices were a bit lower. Mount Vernon peaked at 109 degrees. A hot and humid southwest wind flow ahead of a cold front brought temperatures up to the mid 90's. Dew points were exceptionally high, with readings in the lower 80's at most stations.

Excessive Heat in ALEXANDER, ILLINOIS
From 20-JUL-22 10:00:00 to 20-JUL-22 20:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in PULASKI, ILLINOIS
From 20-JUL-22 10:00:00 to 20-JUL-22 20:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in MASSAC, ILLINOIS
From 20-JUL-22 10:00:00 to 20-JUL-22 20:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in UNION, ILLINOIS
From 20-JUL-22 10:00:00 to 20-JUL-22 20:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Excessive Heat in JOHNSON, ILLINOIS
From 20-JUL-22 10:00:00 to 20-JUL-22 20:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Excessive Heat in POPE, ILLINOIS
From 20-JUL-22 10:00:00 to 20-JUL-22 20:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Excessive Heat in HARDIN, ILLINOIS
From 20-JUL-22 10:00:00 to 20-JUL-22 20:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Excessive Heat in JACKSON, ILLINOIS
From 20-JUL-22 10:00:00 to 20-JUL-22 20:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Excessive Heat in WILLIAMSON, ILLINOIS
From 20-JUL-22 10:00:00 to 20-JUL-22 20:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in SALINE, ILLINOIS
From 20-JUL-22 10:00:00 to 20-JUL-22 20:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in GALLATIN, ILLINOIS
From 20-JUL-22 10:00:00 to 20-JUL-22 20:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in WHITE, ILLINOIS
From 20-JUL-22 10:00:00 to 20-JUL-22 20:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in HAMILTON, ILLINOIS
From 20-JUL-22 10:00:00 to 20-JUL-22 20:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in FRANKLIN, ILLINOIS
From 20-JUL-22 10:00:00 to 20-JUL-22 20:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in PERRY, ILLINOIS
From 20-JUL-22 10:00:00 to 20-JUL-22 20:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in EDWARDS, ILLINOIS
From 20-JUL-22 10:00:00 to 20-JUL-22 20:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in WABASH, ILLINOIS
From 20-JUL-22 10:00:00 to 20-JUL-22 20:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in JEFFERSON, ILLINOIS
From 20-JUL-22 10:00:00 to 20-JUL-22 20:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Excessive Heat in WAYNE, ILLINOIS
From 20-JUL-22 10:00:00 to 20-JUL-22 20:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS