Weather WorldDupo Junior High School, IL 7-Day Night Weather Forecast
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Dupo Junior High School, IL Weather Forecast
Dupo Junior High School, IL Weather Forecast Date: 743 PM CDT Thu Aug 06 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 cloudy with a chance of showers and thunderstorms. Near steady temperature in the lower 70s. Southeast winds around 5 mph. Chance of rain 50%.
Friday... Mostly sunny. A chance of showers and thunderstorms in the afternoon. Warmer with highs in the upper 80s. Southwest winds around 5 mph. Chance of rain 30%. Heat index values up to 100 in the afternoon.
Friday Night... Partly cloudy with a slight chance of showers and thunderstorms. Humid with lows in the lower 70s. Southwest winds around 5 mph. Chance of rain 20%.
Saturday... Mostly sunny. A slight chance of showers and thunderstorms in the morning. Humid with highs in the upper 80s. West winds around 5 mph. Chance of rain 20%. Heat index values up to 103.
Saturday Night... Mostly clear in the evening, then becoming partly cloudy. A slight chance of showers and thunderstorms. Humid with lows in the lower 70s. Southeast winds around 5 mph. Chance of rain 20%. Heat index values up to 101 early in the evening.
Sunday... Mostly sunny. A slight chance of showers and thunderstorms in the morning. Highs in the lower 90s. Chance of rain 20%. Heat index values up to 105 in the afternoon.
Sunday Night... Partly cloudy. Lows in the mid 70s. Heat index values up to 105 early in the evening.
Monday... Sunny. Highs in the lower 90s. Heat index values up to 110.
Monday Night... Mostly clear. A slight chance of showers and thunderstorms in the evening. Lows in the mid 70s. Chance of rain 20%. Heat index values up to 105 early in the evening.
Tuesday... Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 20%. Heat index values up to 105.
Tuesday 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 mid 70s. Chance of rain 40%. Heat index values up to 105 early in the evening.
Wednesday... Partly sunny with a slight chance of thunderstorms. A chance of showers, mainly in the morning. Highs in the upper 80s. Chance of rain 50%. Heat index values up to 100.
Wednesday Night... Partly cloudy in the evening, then becoming mostly cloudy. A chance of thunderstorms. A chance of showers. Lows in the lower 70s. Chance of rain 50%.
POP = Probability of Precipitation
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