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Brussels, IL 7-Day Night Weather Forecast
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Brussels, IL Weather Forecast
Brussels, IL Weather Forecast Date: 232 AM CDT Sat Sep 05 2026
The area/counties/county of: Greene County Il, Jersey County Il.or toggle through each period.
Rest of Tonight... Mostly clear. Near steady temperature in the mid 70s. Southwest winds around 5 mph.
Saturday... Sunny, hot with highs in the upper 90s. Northwest winds around 5 mph. Heat index values up to 107.
Saturday Night... Partly cloudy. Lows in the upper 60s. Northeast winds around 5 mph. Heat index values up to 104 early in the evening.
Sunday... Mostly sunny. Not as warm with highs in the upper 80s. East winds 5 to 10 mph.
Sunday Night... Mostly clear. Lows in the lower 60s. East winds 5 to 10 mph.
Labor Day... Mostly clear. Highs in the upper 80s. Lows in the lower 60s.
Monday Night... Mostly clear. Highs in the upper 80s. Lows in the lower 60s.
Tuesday... Mostly clear. Hot. Highs in the upper 90s. Lows in the lower 70s. Heat index values up to 105.
Wednesday... Mostly clear. Hot. Highs in the upper 90s. Lows in the lower 70s. Heat index values up to 105.
Wednesday Night... Partly cloudy. A chance of showers with a slight chance of thunderstorms. Lows in the upper 60s. Highs in the upper 80s. Chance of rain 50%.
Thursday... Partly cloudy. A chance of showers with a slight chance of thunderstorms. Lows in the upper 60s. Highs in the upper 80s. Chance of rain 50%.
Thursday Night... Mostly clear. A slight chance of showers and thunderstorms after midnight. Lows in the lower 60s. Chance of rain 20%.
POP = Probability of Precipitation
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