Muskegon (MI)
September
Weather in Muskegon, Michigan for September 2026
Your guide to Muskegon weather in September - trends and predictions
So far, September 2026 in Muskegon shows a warmer trend than usual by 2.1 °F.
The forecast for the next days in Muskegon predicts temperatures to be around 18 °F, close to the historical average.
In general, the average temperature in Muskegon at the beginning of September is 23.9 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 18.3 °F by the end of September.
Muskegon experiences moderate rainfall in September, with an average of 6 rainy days and a total precipitation of 208.6 mm.
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Temperatures
Rain 🌧️
More
24
Dry days
6
Rainy days
0
Snow days
21°/15°
Temperatures
19 km/h
Avg max wind
79 %
Avg humidity
Muskegon Weather September
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Temperatures trend during September in Muskegon
See the weather trend as well as the moving average line
September weather in Muskegon day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Mist | 27° /17° | 0 mm | 7 | |
| Sept. 2 |  Partly cloudy | 25° /18° | 0.1 mm | 5 | |
| Sept. 3 |  Moderate or heavy rain shower | 25° /16° | 24.2 mm | 2 | |
| Sept. 4 |  Overcast | 23° /15° | 323.3 mm | 3 | |
| Sept. 5 | Overcast | 23° /17° | 0 mm | 4 | |
| Sept. 6 | Overcast | 21° /14° | 0 mm | 4 | |
| Sept. 7 |  Light rain shower | 23° /13° | 4.3 mm | 6 | |
| Sept. 8 |  Cloudy | 23° /13° | 0 mm | 4 | |
| Sept. 9 | Overcast | 23° /17° | 7.1 mm | 3 | |
| Sept. 10 | Overcast | 23° /15° | 0 mm | 4 | |
| Sept. 11 | Overcast | 24° /13° | 0 mm | 6 | |
| Sept. 12 | Fog | 23° /13° | 0 mm | 4 | |
| Sept. 13 | Moderate or heavy rain shower | 21° /16° | 33.6 mm | 5 | |
| Sept. 14 |  Sunny | 25° /13° | 0 mm | 6 | |
| Sept. 15 | Cloudy | 24° /15° | 10.9 mm | 3 | |
| Sept. 16 | Mist | 26° /15° | 0 mm | 3 | |
| Sept. 17 | Cloudy | 23° /15° | 0.3 mm | 4 | |
| Sept. 18 | Fog | 22° /13° | 0.3 mm | 2 | |
| Sept. 19 |  Light drizzle | 15° /10° | 19.1 mm | 1.4 | |
| Sept. 20 | Patchy rain possible | 17° /14° | 3.2 mm | 0.8 | |
| Sept. 21 | Overcast | 17° /12° | 0 mm | 1.3 | |
| Sept. 22 | Overcast | 16° /11° | 0 mm | 4 | |
| Sept. 23 | Overcast | 18° /11° | 0 mm | 4 | |
| Sept. 24 | Overcast | 18° /10° | 0 mm | 4 | |
| Sept. 25 | Sunny | 20° /10° | 0 mm | 6 | |
| Sept. 26 | Sunny | 20° /10° | 0 mm | 5 | |
| Sept. 27 | Overcast | 20° /12° | 0 mm | 6 | |
| Sept. 28 | Overcast | 19° /14° | 0 mm | 4 | |
| Sept. 29 | Light rain shower | 16° /12° | 6.1 mm | 3 | |
| Sept. 30 | Patchy rain possible | 15° /10° | 3.2 mm | 3 | |
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Important Notice
Our weather forecast for Muskegon in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Muskegon forecast closer to your planned date for the most up-to-date weather information.
Change Month
Muskegon in September - FAQ
What are the expected maximum and minimum temperatures in Muskegon during September?
During September, expect a variety of temperatures with highs around 21° and lows near 15°, suitable for diverse activities and preferences.
How much rainfall should be expected in Muskegon during September?
Significant rainfall exceeding 208.6 mm is expected in Muskegon during September, occurring over more than 6 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Muskegon during September?
The average wind speed in Muskegon during September is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Muskegon
Explore the daily rainfall trends and prepare for Muskegons September weather 💧
Typically, Muskegon has 6 rainy days in September with a total of 208.6 mm of rainfall.
UV exposure in Muskegon during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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