Weather World
Willaredt Lake, IL 7-Day Night Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Weather Quote O' the Day
Willaredt Lake, IL Weather Forecast
Willaredt Lake, IL Weather Forecast Date: 607 AM CDT Wed Sep 16 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.
Today... Partly sunny with a chance of showers and thunderstorms. Highs in the mid 90s. East winds around 5 mph, becoming southwest this afternoon. Chance of rain 40%. Heat index values up to 106.
Tonight... Partly cloudy with a chance of showers and thunderstorms in the evening, then mostly clear after midnight. Humid with lows in the mid 70s. South winds around 5 mph. Chance of rain 30%. Heat index values up to 103 early in the evening.
Thursday... Sunny, hot with highs in the upper 90s. West winds around 5 mph. Heat index values up to 107.
Thursday Night... Partly cloudy. Humid with lows in the lower 70s. Northwest winds around 5 mph, becoming northeast after midnight. Heat index values up to 103 early in the evening.
Friday... Mostly sunny. Hot with highs in the mid 90s. East winds around 5 mph, becoming south around 5 mph in the afternoon. Heat index values up to 104 in the afternoon.
Friday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 70s.
Saturday... Mostly sunny. Hot with highs in the upper 90s.
Saturday Night... Mostly cloudy in the evening, then becoming partly cloudy. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the lower 70s. Chance of rain 40%.
Sunday... Mostly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 20%.
Sunday Night... Partly cloudy. A slight chance of showers in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. Lows in the upper 60s. Chance of rain 40%.
Monday... Partly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 20%.
Monday Night... Partly cloudy with a 30% chance of showers. Lows in the mid 60s.
POP = Probability of Precipitation
Willaredt Lake Radar Loop
Use the map search tool if you want to place a location marker on the radar map...