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City of Washington, ILWashington, IL 7-Day Weather Forecast
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Washington Weather Forecast
Washington, IL Weather Forecast Date: 932 AM CDT Mon Sep 14 2026
Weather forecast for Washington, IL
Today Hi: 79°FHi: 26°C Lo: 69°F Lo: 21°C |
Rest of Today... Partly sunny. Highs in the upper 70s. Southeast winds 10 to 15 mph with gusts up to 25 mph. |
Tue Hi: 90°FHi: 32°C Lo: 65°F Lo: 18°C |
Tuesday... Mostly sunny with a chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Warmer. More humid with highs around 90. Southwest winds 10 to 15 mph, becoming west 5 to 10 mph in the afternoon. Chance of rain 50%. |
Wed Hi: 85°FHi: 29°C Lo: 70°F Lo: 21°C |
Wednesday... Becoming partly sunny in the afternoon. Showers likely in the morning. Humid with highs in the mid 80s. East winds 5 to 10 mph. Chance of rain 70%. |
| Thu Hi: 85°FHi: 29°C Lo: 69°F Lo: 21°C |
Thursday... Partly sunny. A chance of showers in the morning. Highs in the mid 80s. Chance of rain 50%. |
Fri Hi: 85°FHi: 29°C Lo: 69°F Lo: 21°C |
Friday... Partly cloudy. Highs in the mid 80s. Lows in the upper 60s. |
Sat Hi: 85°FHi: 29°C Lo: 65°F Lo: 18°C |
Saturday... Mostly sunny with a chance of showers. Highs in the mid 80s. Chance of rain 50%. |
| Sun Hi: 80°FHi: 27°C Lo: 65°F Lo: 18°C |
Sunday... Mostly cloudy. A chance of showers. Lows in the mid 60s. Highs around 80. Chance of rain 40%. |
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