Weather Forecast for
Washington County, IL


Overnight: A 30 percent chance of showers and thunderstorms, mainly before 2am. Mostly cloudy, with a low around 72. Southwest wind around 7 mph.

Tuesday: A chance of showers and thunderstorms before 2pm, then a slight chance of showers and thunderstorms after 3pm. Mostly cloudy, then gradually becoming sunny, with a high near 88. Heat index values as high as 102. Southwest wind 7 to 10 mph. Chance of precipitation is 30%.

Tuesday Night: Mostly clear, with a low around 75. Southwest wind 6 to 8 mph.

Wednesday: Sunny, with a high near 93. Heat index values as high as 103. South wind 7 to 16 mph.

Wednesday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 75. South wind 10 to 15 mph, with gusts as high as 23 mph.

Thursday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. Breezy.

Thursday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 70. Chance of precipitation is 70%.

Friday: Mostly sunny, with a high near 85.

Friday Night: Mostly clear, with a low around 65.

Saturday: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.

Saturday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.

Sunday: A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.

Sunday Night: A 30 percent chance of showers. Partly cloudy, with a low around 64.

Monday: A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.

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