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Gilson, IL 7-Day Night Weather Forecast
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Gilson, IL Weather Forecast
Gilson, IL Weather Forecast Date: 1037 PM CDT Wed Sep 02 2026
The area/counties/county of: Knox, including the city of Galesburg.or toggle through each period.
Rest of Tonight... Mostly clear. Near steady temperature in the upper 70s. South winds 5 to 10 mph.
Thursday... Sunny. A slight chance of showers and thunderstorms in the afternoon. Humid with highs in the mid 90s. Southwest winds 5 to 10 mph. Chance of rain 20%. Heat index values up to 104.
Thursday Night... Mostly clear. A slight chance of showers and thunderstorms in the evening. Lows in the mid 70s. South winds around 5 mph. Chance of rain 20%.
Friday... Sunny with highs in the lower 90s. Southwest winds around 5 mph. Heat index values up to 105.
Friday Night... Mostly clear. Humid with lows in the lower 70s. South winds around 5 mph.
Saturday... Mostly sunny. Highs in the lower 90s. Heat index values up to 100.
Saturday Night... Mostly clear. Lows in the upper 60s.
Sunday... Mostly sunny. Highs in the upper 80s.
Sunday Night... Mostly clear. Lows in the upper 60s.
Labor Day... Partly cloudy. Highs in the upper 80s. Lows around 70.
Tuesday... Partly cloudy. Highs in the upper 80s. Lows around 70.
POP = Probability of Precipitation
Gilson Radar Loop
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