St Helen, MI Weather Forecast
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St Helen Weather Forecast
| THIS AFTERNOON | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT |
| Partly Sunny | Chance of Showers | Chance of Showers | Chance of Showers | Showers Likely | Chance of Showers | Partly Sunny | Mostly Clear | Mostly Sunny | Partly Cloudy | Partly Sunny | Mostly Clear |
| Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 69°FHi: 21°C | Lo: 59°FLo: 15°C | Hi: 69°FHi: 21°C | Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C | Lo: 31°FLo: -1°C | Hi: 65°FHi: 18°C | Lo: 39°FLo: 4°C | Hi: 61°FHi: 16°C | Lo: 35°FLo: 2°C |
| POP: 50% | POP: 50% | POP: 70% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 313 PM EDT Tue Sep 29 2026 

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Issued: 229 PM EDT Tue Sep 29 2026
Key Messages
- Rain chances return late tonight - Thursday with the highest rainfall amounts expected south of M-32.
- Cooler temperatures return along with dry weather as we look to the weekend.
Discussion
... Issued at 228 PM EDT Tue Sep 29 2026
Quiet weather continues through this evening before shower chances gradually increase late tonight into Wednesday as the next wave and associated boundary approach from the west. Precipitation will become more widespread Wednesday into Thursday as the system t...
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