Weather World
Leu Civil Center, IL 7-Day Night Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Weather Quote O' the Day
Leu Civil Center, IL Weather Forecast
Leu Civil Center, IL Weather Forecast Date: 607 PM CDT Sat Aug 15 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 mostly cloudy. Lows in the mid 70s. South winds 5 to 10 mph. Heat index values up to 106 early this evening.
Sunday... Mostly cloudy in the morning, then partly sunny with a slight chance of showers and thunderstorms in the afternoon. Humid with highs in the mid 90s. West winds 5 to 10 mph. Gusts up to 20 mph in the morning. Chance of rain 20%. Heat index values up to 109.
Sunday Night... Partly cloudy with a chance of showers and thunderstorms in the evening, then mostly cloudy with a slight chance of showers and thunderstorms after midnight. Humid with lows in the lower 70s. North winds 5 to 10 mph. Chance of rain 40%. Heat index values up to 107 early in the evening.
Monday... Mostly sunny. Highs in the mid 80s. North winds 5 to 10 mph.
Monday Night... Partly cloudy in the evening, then becoming mostly clear. Lows in the mid 60s. Northeast winds around 5 mph in the evening, becoming light and variable.
Tuesday... Sunny. Highs in the upper 80s.
Tuesday Night... Mostly clear in the evening, then partly cloudy with a slight chance of showers and thunderstorms after midnight. Lows in the lower 70s. Chance of rain 20%.
Wednesday... Partly sunny. A chance of showers in the morning, then a slight chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 30%.
Wednesday Night... Partly cloudy. A slight chance of showers and thunderstorms in the evening, then a chance of showers after midnight. Lows in the upper 60s. Chance of rain 40%.
Thursday... Partly sunny. A slight chance of showers in the morning. Highs in the lower 80s. Chance of rain 20%.
Thursday Night... Partly cloudy. A slight chance of showers and thunderstorms after midnight. Lows in the mid 60s. Chance of rain 20%.
Friday... Mostly sunny. A slight chance of showers in the morning. Highs in the lower 80s. Chance of rain 20%.
Friday Night... Partly cloudy. Lows in the mid 60s. Highs in the mid 80s.
POP = Probability of Precipitation
Leu Civil Center Radar Loop
Use the map search tool if you want to place a location marker on the radar map...