Weather World
Dupo High School, IL 7-Day Night Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Weather Quote O' the Day
Dupo High School, IL Weather Forecast
Dupo High School, IL Weather Forecast Date: 1237 AM 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.
Rest of Tonight... Numerous showers and thunderstorms. Some thunderstorms May produce heavy rainfall. Lows in the lower 70s. South winds around 5 mph. Chance of rain 70%.
Thursday... Showers and thunderstorms, mainly in the morning. Some thunderstorms May produce heavy rainfall in the morning. Highs in the mid 80s. Southwest winds around 5 mph. Chance of rain near 100%.
Thursday Night... Mostly cloudy with a chance of showers and thunderstorms. Humid with lows in the lower 70s. Southeast winds around 5 mph. Chance of rain 50%.
Friday... Partly sunny with a chance of showers and thunderstorms. Humid with highs in the upper 80s. Southwest winds around 5 mph. Chance of rain 50%.
Friday Night... Mostly cloudy in the evening, then becoming partly cloudy. A chance of showers and thunderstorms. Humid with lows in the lower 70s. Southwest winds around 5 mph. Chance of rain 50%.
Saturday... Mostly sunny. Highs around 90. Heat index values up to 105.
Saturday Night... Mostly clear. Lows in the lower 70s. Heat index values up to 100 early in the evening.
Sunday... Mostly sunny. Highs in the lower 90s. Heat index values up to 105.
Sunday Night... Mostly clear. Lows in the mid 70s. Highs in the mid 90s. Heat index values up to 105.
Monday... Mostly clear. Lows in the mid 70s. Highs in the mid 90s. Heat index values up to 105.
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 chance of showers and thunderstorms in the evening, then mostly cloudy with a chance of showers after midnight. Lows in the mid 70s. Chance of rain 40%. Heat index values up to 100 early in the evening.
POP = Probability of Precipitation
Dupo High School Radar Loop
Use the map search tool if you want to place a location marker on the radar map...