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Tri-County, IL 7-Day Night Weather Forecast
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Tri-County, IL Weather Forecast
Tri-County, IL Weather Forecast Date: 1132 AM CDT Wed Sep 09 2026
The area/counties/county of: Knox, including the city of Galesburg.or toggle through each period.
This Afternoon... Mostly cloudy with a slight chance of thunderstorms. Showers likely early, then a chance of showers. Cooler. Near steady temperature in the mid 70s. West winds 5 to 10 mph. Chance of rain 70%.
Tonight... Partly cloudy in the evening, then mostly cloudy with a slight chance of showers and thunderstorms after midnight. Lows in the mid 60s. West winds around 5 mph. Chance of rain 20%.
Thursday... Mostly cloudy in the morning, then becoming mostly sunny. Highs around 80. Northeast winds around 5 mph.
Thursday Night... Mostly clear. Lows in the upper 50s. East winds around 5 mph.
Friday... Sunny. Highs in the lower 80s. Southeast winds 5 to 10 mph.
Friday Night... Mostly clear in the evening, then partly cloudy with a chance of showers after midnight. Lows in the mid 60s. Chance of rain 40%.
Saturday... Partly sunny. A chance of showers in the morning. Highs in the mid 80s. Chance of rain 40%.
Saturday Night... Mostly cloudy in the evening, then becoming partly cloudy. Lows in the lower 60s.
Sunday... Partly sunny with a 30% chance of showers. Highs in the mid 80s.
Sunday Night... Partly cloudy in the evening, then mostly cloudy with a chance of showers after midnight. Lows in the upper 60s. Chance of rain 30%.
Monday... Mostly sunny with a chance of showers. Highs in the upper 80s. Chance of rain 40%.
Monday Night... Showers likely with a chance of thunderstorms in the evening, then showers likely after midnight. Lows in the mid 60s. Chance of rain 60%.
POP = Probability of Precipitation
Tri-County Radar Loop
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