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The temperatures in Minnesota in September are comfortable with low of 12°C and and high up to 22°C.
You can expect about 3 to 8 days of rain in Minnesota 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 Minnesota in September 2025.
If you’re planning to visit Minnesota in the near future, we highly recommend that you review the 14 day weather forecast for Minnesota before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -7° / -14° | 4 | 9 | 18 | 36 mm | Awful | Minnesota in January |
| February | -5° / -13° | 2 | 9 | 16 | 45 mm | Awful | Minnesota in February |
| March | 4° / -3° | 7 | 14 | 10 | 71 mm | Awful | Minnesota in March |
| April | 11° / 3° | 8 | 16 | 6 | 117 mm | Awful | Minnesota in April |
| May | 19° / 10° | 6 | 24 | 0 | 137 mm | Good | Minnesota in May |
| June | 25° / 15° | 8 | 22 | 0 | 194 mm | Good | Minnesota in June |
| July | 27° / 18° | 8 | 23 | 0 | 139 mm | Good | Minnesota in July |
| August | 26° / 16° | 7 | 24 | 0 | 120 mm | Good | Minnesota in August |
| September | 22° / 12° | 5 | 25 | 0 | 100 mm | Good | Minnesota in September |
| October | 13° / 6° | 5 | 24 | 2 | 80 mm | Bad | Minnesota in October |
| November | 5° / -1° | 4 | 18 | 8 | 60 mm | Awful | Minnesota in November |
| December | -3° / -9° | 4 | 11 | 17 | 56 mm | Awful | Minnesota in December |
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