Michigan (Detroit)
September
Weather in Michigan for September 2026
Your guide to Michigan weather in September - trends and predictions
In general, the average temperature in Michigan at the beginning of September is 26.6 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 21.4 °F by the end of September.
Michigan experiences moderate rainfall in September, with an average of 7 rainy days and a total precipitation of 345.5 mm.
New! Chat with our AI weatherman - it’s amazing and free.
Temperatures
Rain 🌧️
More
23
Dry days
7
Rainy days
0
Snow days
28°/12°
Temperatures
16 km/h
Avg max wind
65 %
Avg humidity
Michigan Weather September
Move between months or click on a day
What’s the Weather Like in Michigan This September?
Discover the average temperatures and weather trends across Michigan’s cities this September.
Temperatures trend during September in Michigan
See the weather trend as well as the moving average line
September weather in Michigan day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Mist | 26° /15° | 0.2 mm | 6 | |
| Sept. 2 |  Sunny | 27° /15° | 0 mm | 7 | |
| Sept. 3 | Sunny | 29° /17° | 0 mm | 7 | |
| Sept. 4 |  Overcast | 27° /17° | 12.1 mm | 6 | |
| Sept. 5 | Overcast | 27° /17° | 1.3 mm | 6 | |
| Sept. 6 | Sunny | 25° /16° | 1.9 mm | 6 | |
| Sept. 7 |  Cloudy | 25° /15° | 1.7 mm | 6 | |
| Sept. 8 | Sunny | 24° /14° | 0.5 mm | 6 | |
| Sept. 9 |  Partly cloudy | 25° /14° | 0 mm | 6 | |
| Sept. 10 | Sunny | 26° /16° | 0 mm | 6 | |
| Sept. 11 | Sunny | 27° /17° | 0.9 mm | 6 | |
| Sept. 12 | Partly cloudy | 26° /17° | 2.5 mm | 7 | |
| Sept. 13 |  Patchy rain possible | 25° /15° | 0.7 mm | 6 | |
| Sept. 14 | Partly cloudy | 28° /16° | 0.9 mm | 6 | |
| Sept. 15 | Sunny | 26° /16° | 0.1 mm | 6 | |
| Sept. 16 | Mist | 27° /15° | 0.1 mm | 6 | |
| Sept. 17 | Patchy rain possible | 27° /16° | 0.4 mm | 6 | |
| Sept. 18 | Partly cloudy | 26° /16° | 0.2 mm | 6 | |
| Sept. 19 | Mist | 24° /17° | 1 mm | 6 | |
| Sept. 20 | Partly cloudy | 26° /17° | 0.9 mm | 6 | |
| Sept. 21 |  Moderate or heavy rain shower | 27° /19° | 16.1 mm | 6 | |
| Sept. 22 | Moderate or heavy rain shower | 24° /15° | 14 mm | 6 | |
| Sept. 23 | Overcast | 20° /13° | 3.7 mm | 5 | |
| Sept. 24 | Partly cloudy | 22° /14° | 1.8 mm | 5 | |
| Sept. 25 |  Heavy rain at times | 21° /16° | 3.1 mm | 5 | |
| Sept. 26 | Partly cloudy | 22° /14° | 0.5 mm | 6 | |
| Sept. 27 | Overcast | 22° /14° | 0.6 mm | 5 | |
| Sept. 28 | Sunny | 19° /14° | 3.5 mm | 5 | |
| Sept. 29 | Sunny | 22° /13° | 0.1 mm | 5 | |
| Sept. 30 | Sunny | 22° /13° | 0 mm | 5 | |
| Next | |||||
Important Notice
Our weather forecast for Michigan 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 Michigan forecast closer to your planned date for the most up-to-date weather information.
Change Month
Michigan in September - FAQ
What are the expected maximum and minimum temperatures in Michigan during September?
Enjoy moderate daytime temperatures of up to 28° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Michigan during September?
Significant rainfall exceeding 345.5 mm is expected in Michigan during September, occurring over more than 7 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Michigan during September?
The average wind speed in Michigan during September is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Michigan
Explore the daily rainfall trends and prepare for Michigans September weather 💧
Typically, Michigan has 7 rainy days in September with a total of 345.5 mm of rainfall.
UV exposure in Michigan during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
Counties in Michigan
Select a county for an accurate weather forecast
Top locations in Michigan
Select a location for an accurate weather forecast
More Locations Quick links
More Michigan weather pages
You are here
Where is Michigan?Get accurate weather forecasts for Michigan, located at latitude 42.331 and longitude -83.046. Stay updated with localized weather information tailored for Michigan.
Found a mistake?
We appreciate your attention to details. Tell us here.