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Summit Lake, MI Weather Forecast
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Summit Lake Weather Forecast
| LATE THIS AFTERNOON | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT |
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| Partly Cloudy | Mostly Clear | Sunny | Clear | Sunny | Clear | Partly Cloudy | Partly Cloudy | Mostly Clear | Mostly Clear | Partly Cloudy | Mostly Cloudy |
| Lo: 31°FLo: -1°C | Hi: 64°FHi: 18°C | Lo: 34°FLo: 1°C | Hi: 67°FHi: 19°C | Lo: 38°FLo: 3°C | Hi: 67°FHi: 19°C Lo: 40°FLo: 4°C | Hi: 67°FHi: 19°C Lo: 40°FLo: 4°C | Hi: 70°FHi: 21°C Lo: 39°FLo: 4°C | Hi: 70°FHi: 21°C Lo: 39°FLo: 4°C | Hi: 70°FHi: 21°C | Hi: 69°FHi: 21°C Lo: 44°FLo: 7°C | |
POP = Probability of Precipitation.
Weather Outlook Updated: 223 PM EDT Mon Sep 21 2026 
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Issued: 714 PM EDT Mon Sep 21 2026
Key Messages
- Widespread frost likely (50-80%) in the interior UP Tuesday morning, and a freeze possible (20-40%) across portions of the interior-west. Frost and Freeze headlines are in effect late tonight through Tuesday morning.
- Dry pattern with persistent high pressure sets up through much of this week. Below-average temperatures through Wednesday give way to above-average temperatures by the weekend.
Discussion
... Issued at 156 PM EDT Mon Sep 21 2026
Afternoon water vapor imagery reveals quite n...