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Colusa, IL Weather Forecast
Colusa, IL Weather Forecast Date: 746 PM CDT Thu Sep 17 2026
The area/counties/county of: Hancock, including the city of Carthage.or toggle through each period.
Tonight... Partly cloudy this evening, then mostly cloudy with a slight chance of showers and thunderstorms after midnight. Patchy fog after midnight. Lows in the upper 60s. Northeast winds around 5 mph. Chance of rain 20%.
Friday... Patchy fog in the morning. Mostly cloudy with a chance of showers with a slight chance of thunderstorms in the morning, then mostly sunny in the afternoon. Humid with highs in the mid 80s. East winds 5 to 10 mph. Chance of rain 40%.
Friday Night... Mostly clear in the evening, then becoming partly cloudy. Humid with lows in the lower 70s. Southeast winds 5 to 10 mph.
Saturday... Partly sunny in the morning, then becoming mostly cloudy. Humid with highs in the upper 80s. Southwest winds 5 to 10 mph.
Saturday Night... Mostly cloudy. A chance of showers and thunderstorms in the evening, then showers likely after midnight. Humid with lows in the upper 60s. Southwest winds around 5 mph, becoming north after midnight. Chance of rain 70%.
Sunday... Showers likely with a chance of thunderstorms. Highs in the upper 70s. Lows in the lower 60s. Chance of rain 70%.
Sunday Night... Showers likely with a chance of thunderstorms. Highs in the upper 70s. Lows in the lower 60s. Chance of rain 70%.
Monday... Showers likely, mainly in the morning. Not as warm with highs in the upper 60s. Chance of rain 70%.
Monday Night... Mostly cloudy. A chance of showers after midnight. Lows in the upper 50s. Chance of rain 40%.
Tuesday... Mostly cloudy. Highs in the mid 60s. Lows in the lower 50s.
Tuesday Night... Mostly cloudy. Highs in the mid 60s. Lows in the lower 50s.
Wednesday... Partly sunny. Highs around 70.
Wednesday Night... Partly cloudy. Lows in the upper 50s. Highs in the lower 70s.
POP = Probability of Precipitation
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