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City of Florissant, MOFlorissant, MO 7-Day Night Weather Forecast
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Florissant, MO Weather Forecast
Florissant, MO Weather Forecast Date: 748 AM CDT Fri Aug 07 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.
Today... Mostly sunny. A slight chance of showers and thunderstorms this morning. Warmer with highs in the upper 80s. Southwest winds around 5 mph. Chance of rain 20%.
Tonight... Partly cloudy. Lows in the lower 70s. Southwest winds around 5 mph.
Saturday... Sunny with highs in the upper 80s. West winds around 5 mph. Heat index values up to 101 in the afternoon.
Saturday Night... Mostly clear. Humid with lows in the lower 70s. East winds around 5 mph, becoming south after midnight. Heat index values up to 101 early in the evening.
Sunday... Mostly sunny. Humid with highs in the lower 90s. South winds 5 to 10 mph. Heat index values up to 107.
Sunday Night... Mostly clear. Lows in the mid 70s. Highs in the mid 90s. Heat index values up to 110.
Monday... Mostly clear. Lows in the mid 70s. Highs in the mid 90s. Heat index values up to 110.
Tuesday... Mostly sunny. Highs in the lower 90s. Heat index values up to 105.
Tuesday Night... Partly cloudy. A chance of showers and thunderstorms. Lows in the mid 70s. Highs in the upper 80s. Chance of rain 50%. Heat index values up to 105.
Wednesday... Partly cloudy. A chance of showers and thunderstorms. Lows in the mid 70s. Highs in the upper 80s. Chance of rain 50%. Heat index values up to 105.
Wednesday Night... Mostly cloudy with a chance of showers and thunderstorms. Lows in the lower 70s. Highs in the lower 80s. Chance of rain 50%.
POP = Probability of Precipitation
Florissant Radar Loop
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