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City of Tecumseh, MichiganTecumseh, MI Weather Forecast
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Tecumseh Weather Forecast
| EARLY THIS MORNING | TODAY | TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | LABOR DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY |
 | |  |  |  |  | |  |  | |  | |
| Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Mostly Clear | Mostly Sunny | Mostly Clear | Partly Cloudy | Partly Cloudy | Partly Cloudy | Chance of Showers | Chance of T-Storm |
| Hi: 70°FHi: 21°C | Hi: 85°FHi: 29°C | Lo: 65°FLo: 18°C | Hi: 79°FHi: 26°C | Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C | Lo: 55°FLo: 13°C | Hi: 80°FHi: 27°C | Lo: 59°FLo: 15°C | Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 85°FHi: 29°C |
| POP: 50% | POP: 80% | POP: 70% | POP: 40% | POP: 30% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 327 AM EDT Fri Sep 04 2026 
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Issued: 514 AM EDT Fri Sep 4 2026
Key Messages
- There is a Marginal to Slight Risk for severe weather today. Severe weather will be possible this morning mainly south of M59, with additional chance near the Ohio border this afternoon.
- Heavy rainfall and localized flooding will also be a threat today due to heavy rain the past few days and the potential for training storms in a very moist environment.
- More seasonable temperatures and lower humidity are slated to return this weekend.
Aviation
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Ongoing cluster of convection across ea...