Weather WorldHigh Mount School, IL 7-Day Night Weather Forecast
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High Mount School, IL Weather Forecast
High Mount School, IL Weather Forecast Date: 553 PM CDT Sat Sep 12 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.
Tonight... Mostly clear this evening, then becoming partly cloudy. Lows around 70. West winds around 5 mph this evening, becoming light and variable.
Sunday... Partly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 80s. North winds 5 to 10 mph. Chance of rain 20%.
Sunday Night... Partly cloudy in the evening, then becoming mostly cloudy. A slight chance of thunderstorms with isolated showers. Lows in the mid 60s. Northeast winds 5 to 10 mph. Chance of rain 20%.
Monday... Mostly sunny. Highs in the upper 80s. East winds 5 to 10 mph.
Monday Night... Mostly clear. Lows around 70. Southeast winds 5 to 10 mph.
Tuesday... Sunny, warmer with highs in the upper 90s. Heat index values up to 105 in the afternoon.
Tuesday Night... Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows in the lower 70s. Chance of rain 20%. Heat index values up to 100 early in the evening.
Wednesday... Mostly sunny. Hot with highs in the mid 90s. Heat index values up to 105 in the afternoon.
Wednesday Night... Partly cloudy. A slight chance of showers after midnight. Lows in the lower 70s. Chance of rain 20%. Heat index values up to 100 early in the evening.
Thursday... Mostly sunny with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 40%.
Thursday Night... Partly cloudy with a slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the upper 60s. Chance of rain 30%.
Friday... Mostly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 20%.
Friday Night... Mostly clear in the evening, then partly cloudy with a slight chance of showers after midnight. Lows in the mid 60s. Chance of rain 20%.
POP = Probability of Precipitation
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