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City of Winchester, ILWinchester, IL 7-Day Night Weather Forecast
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Winchester, IL Weather Forecast
Winchester, IL Weather Forecast Date: 237 AM CDT Sat Sep 19 2026
The area/counties/county of: Scott, including the city of Winchester.or toggle through each period.
Rest of Tonight... Mostly clear. Near steady temperature in the lower 70s. South winds around 5 mph.
Saturday... Partly sunny in the morning, then becoming mostly cloudy. Hot with highs in the mid 90s. Southwest winds 5 to 10 mph. Heat index values up to 100.
Saturday Night... Mostly cloudy. A chance of showers and thunderstorms after midnight. Lows in the upper 60s. South winds around 5 mph, becoming southwest around 5 mph after midnight. Chance of rain 30%.
Sunday... Partly sunny in the morning, then becoming mostly cloudy. A chance of showers and thunderstorms. Not as warm. Humid with highs in the mid 80s. North winds 5 to 10 mph. Chance of rain 50%.
Sunday Night... Mostly cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Lows in the lower 60s. Northeast winds 5 to 10 mph. Chance of rain 70%.
Monday... Showers likely, mainly in the morning. Cooler with highs around 70. Chance of rain 70%.
Monday Night... Mostly cloudy. A chance of showers after midnight. Lows in the mid 50s. Chance of rain 30%.
Tuesday... Mostly cloudy. Highs in the upper 60s. Lows in the lower 50s.
Tuesday Night... Mostly cloudy. Highs in the upper 60s. Lows in the lower 50s.
Wednesday... Partly cloudy. Highs in the lower 70s. Lows in the mid 50s.
Thursday... Partly cloudy. Highs in the lower 70s. Lows in the mid 50s.
POP = Probability of Precipitation
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