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Clear Lake, MO Weather Forecast
Clear Lake, MO Weather Forecast Date: 104 PM CST Tue Nov 03 2026
The area/counties/county of: Madison County Il, including the cities of: Alton, Edwardsville, Belleville, Cahokia, Saint Charles, and Saint Louis.or toggle through each period.
This Afternoon... Rain with a slight chance of thunderstorms. Breezy with highs in the lower 70s. Temperature falling into the upper 60s late. South winds 15 to 25 mph with gusts up to 35 mph. Chance of rain near 100%.
Tonight... Rain with a slight chance of thunderstorms in the evening, then a chance of rain after midnight. Cooler with lows in the lower 50s. South winds 15 to 20 mph, becoming southwest 5 to 10 mph after midnight. Chance of rain near 100%.
Wednesday... Mostly cloudy. Cooler with highs in the lower 60s. West winds 10 to 15 mph.
Wednesday Night... Mostly cloudy in the evening, then clearing. Cooler with lows in the lower 40s. Southwest winds around 5 mph.
Thursday... Sunny. Highs in the mid 60s. West winds 5 to 10 mph.
Thursday Night... Mostly cloudy. Lows in the mid 40s. Highs in the upper 50s.
Friday... Mostly cloudy. Lows in the mid 40s. Highs in the upper 50s.
Friday Night... Partly cloudy. Lows in the upper 30s.
Saturday... Partly sunny. Highs in the mid 50s.
Saturday Night... Partly cloudy. Lows in the mid 30s.
Sunday... Mostly clear. Highs in the mid 60s. Lows in the mid 30s.
POP = Probability of Precipitation
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