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Grant School, MO Weather Forecast
Grant School, MO Weather Forecast Date: 1022 PM CDT Sun Sep 13 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.
Overnight... Partly cloudy. Lows in the mid 60s. Northeast winds 5 to 10 mph.
Monday... Mostly sunny. Highs in the upper 80s. East winds 10 to 15 mph.
Monday Night... Mostly clear. Lows in the lower 70s. Southeast winds 10 to 15 mph.
Tuesday... Sunny. A chance of showers and thunderstorms in the afternoon. Hot with highs in the upper 90s. South winds 5 to 10 mph. Chance of rain 40%. Heat index values up to 106.
Tuesday Night... Partly cloudy. A chance of showers and thunderstorms, mainly in the evening. Humid with lows in the lower 70s. Southeast winds around 5 mph. Chance of rain 50%. Heat index values up to 102 early in the evening.
Wednesday... Mostly sunny. A slight chance of showers and thunderstorms in the morning. Hot with highs in the mid 90s. Chance of rain 20%. Heat index values up to 105.
Wednesday Night... Partly cloudy in the evening, then becoming mostly clear. Lows in the lower 70s.
Thursday... Mostly sunny with a slight chance of showers and thunderstorms. Highs in the mid 90s. Chance of rain 20%. Heat index values up to 105.
Thursday Night... Partly cloudy. Lows in the lower 70s.
Friday... Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 20%.
Friday Night... Partly cloudy. A 20% chance of showers. Lows in the upper 60s. Highs in the upper 80s.
Saturday... Partly cloudy. A 20% chance of showers. Lows in the upper 60s. Highs in the upper 80s.
Saturday Night... A slight chance of thunderstorms in the evening. Partly cloudy with a slight chance of showers. Lows in the upper 60s. Chance of rain 20%.
POP = Probability of Precipitation
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