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Ummc Weather Forecast
| TODAY | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT |
 |  |  |  |  | |  | | | |  |  |
| Chance of T-Storm | Partly Cloudy | Mostly Cloudy | Mostly Clear | Mostly Sunny | Mostly Clear | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Chance of Showers | Chance of Showers |
| Hi: 80°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 75°FHi: 24°C | Lo: 51°FLo: 11°C | Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C | Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 80°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 69°FLo: 21°C |
| POP: 70% | POP: 30% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 313 AM EDT Wed Sep 09 2026 
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Issued: 617 AM EDT Wed Sep 9 2026
Key Messages
- Showers are likely with a chance of thunderstorms today.
- Dry weather with near-normal, pleasant temperatures returns for Thursday and Friday.
Aviation
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An axis of deep layer moisture residing across southern Michigan within a broad diffuse frontal region will sustain occasional showers today. This will be enhanced by weak mid level short wave impulses rippling along this region of moisture. Latest guidance suggests limited instability will keep thunderstorm chances low (below 30 perc...