Weather WorldHerrin, IL 7-Day Night Weather Forecast
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Herrin, IL Weather Forecast
Herrin, IL Weather Forecast Date: 908 PM CDT Sun Sep 06 2026
The area/counties/county of: Williamson, including the city of Herrin.or toggle through each period.
Tonight... Mostly clear. Lows in the mid 60s. Northeast winds 5 to 10 mph.
Labor Day... Sunny. Highs in the lower 90s. Northeast winds 5 to 10 mph.
Monday Night... Mostly clear. Lows in the mid 60s. East winds around 5 mph in the evening, becoming light and variable.
Tuesday... Sunny, hot with highs in the mid 90s. South winds around 5 mph.
Tuesday Night... Mostly clear. Lows in the lower 70s. South winds 5 to 10 mph.
Wednesday... Sunny, hot with highs in the upper 90s.
Wednesday Night... Mostly clear in the evening, then mostly cloudy with a chance of showers and thunderstorms after midnight. Lows in the lower 70s. Chance of rain 50%.
Thursday... Showers likely in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 70%.
Thursday Night... Partly cloudy in the evening, then clearing. Lows in the mid 60s.
Friday... Sunny. Highs in the upper 80s.
Friday Night... Mostly clear. A chance of showers after midnight. Lows in the mid 60s. Chance of rain 30%.
Saturday... Mostly sunny. A chance of showers in the morning. Highs in the lower 90s. Chance of rain 30%.
Saturday Night... Mostly clear. Lows in the upper 60s.
POP = Probability of Precipitation
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