Lost Lake, MI Weather Forecast
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Lost Lake Weather Forecast
| OVERNIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY |
| Partly Cloudy | Partly Sunny | Mostly Clear | Mostly Sunny | Clear | Mostly Sunny | Partly Cloudy | Mostly Sunny | Mostly Clear | Mostly Sunny | Mostly Clear | Partly Sunny |
| Lo: 39°FLo: 4°C | Hi: 61°FHi: 16°C | Lo: 39°FLo: 4°C | Hi: 65°FHi: 18°C | Lo: 40°FLo: 4°C | Hi: 69°FHi: 21°C | Lo: 39°FLo: 4°C | Hi: 69°FHi: 21°C | Lo: 39°FLo: 4°C | Hi: 69°FHi: 21°C | Lo: 41°FLo: 5°C | Hi: 69°FHi: 21°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1013 PM EDT Mon Sep 21 2026 

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Issued: 1056 PM EDT Mon Sep 21 2026
Key Messages
- Frost Advisory tonight across interior eastern Upper, with patchy frost possible across interior northern Lower.
- Dry weather and seasonable temperatures continue, with a gradual slight warmup into the low 70s into the weekend.
Discussion
... Issued at 223 PM EDT Mon Sep 21 2026
Drier air will continue to filter into northern Michigan this afternoon as Canadian high pressure builds into the Great Lakes. Northeast winds will remain breezy at times as cooler air settles south across the re...
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