Click on a day for an hourly weather forecast
The temperatures in Michigan in September are comfortable with low of 15°C and and high up to 22°C.
You can expect about 3 to 8 days of rain in Michigan during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Michigan in September 2025.
If you’re planning to visit Michigan in the near future, we highly recommend that you review the 14 day weather forecast for Michigan before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -2° / -7° | 5 | 9 | 17 | 74 mm | Awful | Michigan in January |
| February | -1° / -6° | 5 | 8 | 16 | 76 mm | Awful | Michigan in February |
| March | 5° / -1° | 7 | 16 | 8 | 86 mm | Awful | Michigan in March |
| April | 11° / 4° | 10 | 17 | 3 | 161 mm | Awful | Michigan in April |
| May | 18° / 10° | 9 | 22 | 0 | 193 mm | Ok | Michigan in May |
| June | 23° / 16° | 9 | 21 | 0 | 209 mm | Good | Michigan in June |
| July | 26° / 19° | 9 | 22 | 0 | 178 mm | Good | Michigan in July |
| August | 26° / 19° | 7 | 24 | 0 | 162 mm | Good | Michigan in August |
| September | 22° / 15° | 7 | 23 | 0 | 122 mm | Ok | Michigan in September |
| October | 15° / 9° | 7 | 24 | 0 | 116 mm | Ok | Michigan in October |
| November | 8° / 3° | 6 | 19 | 5 | 78 mm | Bad | Michigan in November |
| December | 2° / -2° | 7 | 12 | 13 | 71 mm | Awful | Michigan in December |