Union School, MI Weather Forecast
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Union School Weather Forecast
| TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY |
| Mostly Cloudy | Chance of T-Storm | Partly Cloudy | Mostly Cloudy | Chance of Showers | Chance of Showers | Partly Cloudy | Partly Cloudy | Chance of Showers | Showers | Showers Likely | Chance of Showers |
| Lo: 55°FLo: 13°C | Hi: 81°FHi: 27°C | Lo: 60°FLo: 16°C | Hi: 75°FHi: 24°C | Lo: 60°FLo: 16°C | Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C | Hi: 75°FHi: 24°C | Lo: 60°FLo: 16°C | Hi: 79°FHi: 26°C | Lo: 60°FLo: 16°C | Hi: 71°FHi: 22°C |
| POP: 50% | POP: 50% | POP: 50% | POP: 40% | POP: 60% | POP: 60% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 333 PM EDT Mon Sep 14 2026 

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Issued: 1156 PM EDT Mon Sep 14 2026
Key Messages
- A chance of showers and thunderstorms returns Tuesday. The best chance of storms and heavy rainfall is late afternoon and evening south of I-69.
- A chance of showers lingers Wednesday before becoming more numerous again Wednesday night and Thursday.
- Dry weather with temperatures around normal Friday into next weekend.
Aviation
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Thickening high based cloud overnight, as elevated moisture transport increases along the southern flank of a strengthening low level jet positioned north of t...
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