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Sigel, IL 7-Day Night Weather Forecast
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Sigel, IL Weather Forecast
Sigel, IL Weather Forecast Date: 637 PM CDT Thu Sep 03 2026
The area/counties/county of: Shelby, including the city of Shelbyville.or toggle through each period.
Tonight... Clear. Lows in the mid 70s. South winds around 5 mph.
Friday... Sunny, hot with highs in the upper 90s. Southwest winds around 5 mph. Heat index values up to 104.
Friday Night... Mostly clear. A slight chance of showers and thunderstorms after midnight. Lows in the lower 70s. Southwest winds around 5 mph in the evening, becoming light and variable. Chance of rain 20%.
Saturday... Sunny, hot with highs in the upper 90s. Northwest winds around 5 mph. Heat index values up to 104.
Saturday Night... Mostly clear. Humid with lows in the upper 60s. Northeast winds around 5 mph.
Sunday... Mostly clear. Highs in the upper 80s. Lows in the lower 60s.
Monday... Mostly clear. Highs in the upper 80s. Lows in the lower 60s.
Tuesday... Mostly clear. Hot. Highs in the mid 90s. Lows in the lower 70s.
Wednesday... Mostly clear. Hot. Highs in the mid 90s. Lows in the lower 70s.
Wednesday Night... Mostly clear in the evening, then partly cloudy with a chance of showers after midnight. Lows in the lower 70s. Chance of rain 30%.
POP = Probability of Precipitation
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