weather in charles
Weather Forecast for Charles County, MD Overnight: A slight chance of rain after 4am. Mostly cloudy, with a low around 37. Southeast wind around 6 mph. Chance of precipitation is 20%. Washington's Birthday: A chance of rain, mainly before 4pm. Mostly cloudy, with a high near 51. South wind 5 to 7 mph. Chance of precipitation is 40%.