Weather WorldMascoutah Lake, IL 7-Day Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Mascoutah Lake Weather Forecast
Mascoutah Lake, IL Weather Forecast Date: 438 AM CDT Mon Aug 24 2026
Weather forecast for Mascoutah Lake, IL
Today Hi: 81°FHi: 27°C Lo: 61°F Lo: 16°C |
Today... Widespread dense fog this morning. Sunny. Highs in the lower 80s. East winds around 5 mph. |
| Tue Hi: 85°FHi: 29°C Lo: 69°F Lo: 21°C |
Tuesday... Mostly sunny. Highs in the mid 80s. Southeast winds 5 to 10 mph. |
Wed Hi: 89°FHi: 32°C Lo: 65°F Lo: 18°C |
Wednesday... Mostly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 80s. Southwest winds around 5 mph. Chance of rain 20%. |
| Thu Hi: 89°FHi: 32°C Lo: 65°F Lo: 18°C |
Thursday... Mostly clear. Highs in the upper 80s. Lows in the mid 60s. |
| Fri Hi: 89°FHi: 32°C Lo: 65°F Lo: 18°C |
Friday... Mostly clear. Highs in the upper 80s. Lows in the mid 60s. |
| Fri Hi: 89°FHi: 32°C Lo: 65°F Lo: 18°C |
Friday... Mostly clear. Highs in the upper 80s. Lows in the mid 60s. |
Sat Hi: 89°FHi: 32°C Lo: 71°F Lo: 22°C |
Saturday... Partly sunny. Highs in the upper 80s. |
Mascoutah Lake Radar Loop
Use the map search tool if you want to place a location marker on the radar map...