Mattawan, MI Weather Forecast
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Mattawan Weather Forecast
| THROUGH EARLY EVENING | TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT |
| Showers | Chance of Showers | Mostly Cloudy | Partly Cloudy | Mostly Sunny | Partly Cloudy | Mostly Sunny | Partly Cloudy | Mostly Sunny | Partly Cloudy | Clearing | Partly Cloudy |
| Lo: 50°FLo: 10°C | Hi: 65°FHi: 18°C | Lo: 49°FLo: 9°C | Hi: 65°FHi: 18°C | Lo: 49°FLo: 9°C | Hi: 65°FHi: 18°C | Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C | Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C | Lo: 45°FLo: 7°C | |
| POP: 80% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 222 PM EDT Sun Sep 20 2026 

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Issued: 744 PM EDT Sun Sep 20 2026
Key Messages
- Rain tapers off this afternoon/evening
- Mainly dry weather is expected from Monday through Friday
- Seasonable temperatures this week...feeling more like fall
Discussion
... Issued at 154 PM EDT Sun Sep 20 2026- Rain tapers off this afternoon/evening
Precipitation is in the process of winding down this afternoon over Southern Lower Michigan. A zone of convergence in the 850-700mb layer is aiding the precipitation. Models show the axis of convergence moving southward steadily this afternoon ...
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