Munster, IL Weather Forecast
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Munster Weather Forecast
| TONIGHT | SUNDAY | SUNDAY NIGHT | LABOR DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY |
| Partly Cloudy | Partly Cloudy | Clearing | Mostly Sunny | Mostly Clear | Partly Cloudy | Partly Cloudy | Chance of T-Storm | Partly Cloudy | Partly Cloudy | Clearing | Partly Cloudy |
| Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C | Lo: 60°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 89°FHi: 32°C | Lo: 71°FLo: 22°C | Hi: 89°FHi: 32°C | Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C | Lo: 60°FLo: 16°C | Hi: 81°FHi: 27°C |
| POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 736 PM CDT Sat Sep 05 2026 

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Issued: 626 PM CDT Sat Sep 5 2026
Key Messages
- Moderate to high swim risk expected through early Sunday during the final weekend of beach season.
- Relatively cooler Sunday and Monday, although remaining seasonably warm.
Discussion
... Issued at 137 PM CDT Sat Sep 5 2026
After an unseasonably hot and humid stretch to start September, cooler conditions are beginning to filter over the area from north to south today. Moisture pooling along a cold front draped across the southern CWA combined with temps in the lower 90s south of the fron...
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