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Village of Port Sanilac, MichiganPort Sanilac, MI Weather Forecast
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Port Sanilac Weather Forecast
| TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY |
 |  |  |  |  | | |  | | | | |
| Widespread Fog | Clearing | Partly Cloudy | Mostly Cloudy | Showers | Chance of Showers | Chance of Showers | Chance of Showers | Partly Cloudy | Partly Cloudy | Partly Cloudy | Mostly Cloudy |
| Lo: 49°FLo: 9°C | Hi: 75°FHi: 24°C | Lo: 59°FLo: 15°C | Hi: 75°FHi: 24°C | Lo: 61°FLo: 16°C | Hi: 75°FHi: 24°C | Lo: 51°FLo: 11°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C |
| POP: 60% | POP: 70% | POP: 70% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 340 PM EDT Mon Sep 28 2026 
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Issued: 335 PM EDT Mon Sep 28 2026
Key Messages
- Dry and pleasant weather conditions will persist into Wednesday.
- Areas of dense fog expected again Tuesday morning.
- Rain chances increase during the latter half of the week with cooler temperatures expected.
Discussion
...
Blocking pattern still in place across the conus with the Great Lakes locked under the stacked ridging. Local weather stays quiet through Tuesday with the ridge in place but the ridge will begin to slowly shift eastward as the blocking low off the east coast releases ...