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Mascoutah Lake, IL Weather Forecast
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Mascoutah Lake Weather Forecast
| REST OF TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT |
 |  |  | | | | |  |  | | | |
| Partly Cloudy | Sunny | Mostly Clear | Sunny | Mostly Clear | Mostly Clear | Mostly Clear | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm |
| Lo: 70°FLo: 21°C | Hi: 90°FHi: 32°C | Lo: 71°FLo: 22°C | Hi: 91°FHi: 33°C | Lo: 75°FLo: 24°C | Hi: 95°FHi: 35°C Lo: 79°FLo: 26°C | Hi: 95°FHi: 35°C Lo: 79°FLo: 26°C | Hi: 91°FHi: 33°C Lo: 75°FLo: 24°C | Hi: 91°FHi: 33°C Lo: 75°FLo: 24°C | Lo: 71°FLo: 22°C | Hi: 85°FHi: 29°C | Lo: 69°FLo: 21°C |
| POP: 40% | POP: 40% | POP: 50% | POP: 50% | POP: 60% |
POP = Probability of Precipitation.
Weather Outlook Updated: 212 AM CDT Sat Aug 08 2026 
Mascoutah Lake Radar Loop
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