Willis, MI Weather Forecast
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Willis Weather Forecast
| REST OF TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | LABOR DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY |
| Chance of T-Storm | Chance of Showers | Mostly Clear | Partly Cloudy | Mostly Clear | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Mostly Cloudy | Partly Cloudy | Partly Cloudy |
| 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: 79°FHi: 26°C | Lo: 59°FLo: 15°C | Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 85°FHi: 29°C | Lo: 65°FLo: 18°C | Hi: 79°FHi: 26°C |
| POP: 50% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1003 PM EDT Fri Sep 04 2026 

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Issued: 708 PM EDT Fri Sep 4 2026
Key Messages
- There remains a chance of showers and thunderstorms through tonight. While widespread severe weather is not expected, an isolated stronger storm is possible.
- More seasonable temperatures and lower humidity are slated to return this weekend.
Aviation
...
The best chance for localized thunderstorms at this stage of the evening is near MBS where some minor recovery of late day instability has occurred. Similarly for the area south and west of DTW with the added potential for upper Midwest ...
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