William Mitchell State Park, MI Weather Forecast
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William Mitchell State Park Weather Forecast
| TODAY | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | COLUMBUS DAY | MONDAY NIGHT |
| Mostly Sunny | Mostly Clear | Mostly Sunny | Mostly Clear | Partly Sunny | Partly Cloudy | Sunny | Mostly Clear | Partly Sunny | Mostly Clear | Partly Sunny | Chance of Showers |
| Hi: 69°FHi: 21°C | Lo: 41°FLo: 5°C | Hi: 61°FHi: 16°C | Lo: 35°FLo: 2°C | Hi: 65°FHi: 18°C | Lo: 49°FLo: 9°C | Hi: 75°FHi: 24°C | Lo: 59°FLo: 15°C | Hi: 75°FHi: 24°C | Lo: 51°FLo: 11°C | Hi: 69°FHi: 21°C | Lo: 45°FLo: 7°C |
| POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 612 AM EDT Wed Oct 07 2026 

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Issued: 649 AM EDT Wed Oct 7 2026
Key Messages
- Scattered showers and thunderstorms this afternoon/evening esp Tip of the Mitt and E UP.
- Mild/warm temperatures this upcoming weekend (70s possible).
Discussion
... Issued at 146 AM EDT Wed Oct 7 2026
Pattern Synopsis and Forecast:
Fun little setup potentially for today, definitely has that cool season smell to it. Stout upper low across Ontario to our north (and low pressure system), with impressive short wave diving across the southern periphery of the broader trough. Consequently, hei...
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