Click on a day for an hourly weather forecast
The temperatures in Muskegon in September are comfortable with low of 14°C and and high up to 21°C.
You can expect about 3 to 8 days of rain in Muskegon 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 Muskegon in September 2025.
If you’re planning to visit Muskegon in the near future, we highly recommend that you review the 14 day weather forecast for Muskegon before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -2° / -6° | 5 | 6 | 21 | 48 mm | Awful | Muskegon in January |
| February | -2° / -6° | 4 | 7 | 18 | 48 mm | Awful | Muskegon in February |
| March | 4° / -1° | 6 | 16 | 8 | 50 mm | Awful | Muskegon in March |
| April | 9° / 3° | 7 | 19 | 4 | 76 mm | Awful | Muskegon in April |
| May | 15° / 9° | 6 | 25 | 0 | 86 mm | Good | Muskegon in May |
| June | 20° / 14° | 4 | 26 | 0 | 87 mm | Good | Muskegon in June |
| July | 24° / 18° | 4 | 27 | 0 | 78 mm | Perfect | Muskegon in July |
| August | 24° / 18° | 4 | 27 | 0 | 80 mm | Perfect | Muskegon in August |
| September | 21° / 14° | 3 | 27 | 0 | 71 mm | Good | Muskegon in September |
| October | 14° / 9° | 7 | 24 | 0 | 94 mm | Ok | Muskegon in October |
| November | 7° / 3° | 6 | 17 | 8 | 45 mm | Bad | Muskegon in November |
| December | 1° / -2° | 7 | 9 | 16 | 50 mm | Awful | Muskegon in December |