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City of Saint Clair, MISt. Clair, MI Weather Forecast
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St. Clair Weather Forecast
| TODAY | TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT |
 |  | |  |  |  | | |  | | | |
| Partly Cloudy | Cloudy | Partly Cloudy | Partly Cloudy | Mostly Cloudy | Chance of Rain | Mostly Cloudy | Chance of Rain | Chance of Rain | Chance of Rain | Chance of Rain | Chance of Rain |
| Hi: 59°FHi: 15°C | Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C | Lo: 49°FLo: 9°C | Hi: 65°FHi: 18°C | Lo: 51°FLo: 11°C | Hi: 69°FHi: 21°C | Lo: 55°FLo: 13°C | Hi: 69°FHi: 21°C | Lo: 49°FLo: 9°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C |
| POP: 40% | POP: 50% | POP: 60% | POP: 60% | POP: 30% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 335 AM EDT Sat Oct 31 2026 
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Issued: 622 AM EDT Sat Oct 31 2026
Key Messages
- Cool but still slightly above normal temperatures again today.
- Low chance for a isolated light showers late today towards central MI.
- Mild early to middle next week.
Aviation
...
VFR conditions through the period as a thick canopy of mid level cloud based between 7 and 10k ft maintains residence. A light variable early day wind will emerge from the southeast this afternoon.
D21/DTW Convection...Thunderstorms are not forecast through the TAF period.
.DTW THRESHOLD PROBABILITIES...- None