Detroit (MI)
September
Weather in Detroit, Michigan for September 2026
Your guide to Detroit weather in September - trends and predictions
So far, September 2026 in Detroit shows a warmer trend than usual by 2.5 °F.
The forecast for the next days in Detroit predicts a temperature of 21 °F, which is cooler than the historical average.
In general, the average temperature in Detroit at the beginning of September is 27.3 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 20 °F by the end of September.
Detroit experiences moderate rainfall in September, with an average of 8 rainy days and a total precipitation of 69.1 mm.
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Temperatures
Rain 🌧️
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22
Dry days
8
Rainy days
0
Snow days
24°/16°
Temperatures
16 km/h
Avg max wind
65 %
Avg humidity
Detroit Weather September
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Temperatures trend during September in Detroit
See the weather trend as well as the moving average line
September weather in Detroit day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Sunny | 28° /16° | 0.1 mm | 6 | |
| Sept. 2 | Sunny | 29° /16° | 2.5 mm | 7 | |
| Sept. 3 | Sunny | 30° /18° | 33.9 mm | 7 | |
| Sept. 4 |  Overcast | 27° /17° | 18 mm | 6 | |
| Sept. 5 | Sunny | 27° /17° | 1.1 mm | 6 | |
| Sept. 6 | Sunny | 25° /15° | 1.6 mm | 6 | |
| Sept. 7 |  Cloudy | 25° /14° | 1.4 mm | 6 | |
| Sept. 8 | Sunny | 25° /13° | 0.4 mm | 6 | |
| Sept. 9 | Sunny | 25° /15° | 5 mm | 5 | |
| Sept. 10 | Overcast | 26° /16° | 0 mm | 6 | |
| Sept. 11 | Sunny | 27° /16° | 0.8 mm | 6 | |
| Sept. 12 |  Partly cloudy | 26° /17° | 2.5 mm | 6 | |
| Sept. 13 | Sunny | 28° /16° | 0 mm | 5.9 | |
| Sept. 14 | Sunny | 21° /12° | 0 mm | 5.8 | |
| Sept. 15 | Overcast | 25° /16° | 1.3 mm | 4.4 | |
| Sept. 16 | Overcast | 23° /17° | 1.9 mm | 6 | |
| Sept. 17 | Sunny | 23° /15° | 1.9 mm | 6 | |
| Sept. 18 | Overcast | 24° /15° | 0 mm | 5 | |
| Sept. 19 |  Patchy rain possible | 26° /18° | 21.2 mm | 6 | |
| Sept. 20 | Patchy rain possible | 20° /15° | 7.9 mm | 4 | |
| Sept. 21 | Overcast | 15° /12° | 13.2 mm | 4 | |
| Sept. 22 | Light rain shower | 18° /14° | 30.8 mm | 4 | |
| Sept. 23 | Patchy rain possible | 16° /13° | 5.1 mm | 4 | |
| Sept. 24 | Patchy rain possible | 15° /13° | 0.5 mm | 3 | |
| Sept. 25 | Sunny | 20° /13° | 0 mm | 5 | |
| Sept. 26 | Sunny | 20° /14° | 0 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 | |
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Important Notice
Our weather forecast for Detroit 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 Detroit forecast closer to your planned date for the most up-to-date weather information.
Change Month
Detroit in September - FAQ
What are the expected maximum and minimum temperatures in Detroit during September?
During September, expect a variety of temperatures with highs around 24° and lows near 16°, suitable for diverse activities and preferences.
How much rainfall should be expected in Detroit during September?
Moderate rainfall is anticipated in Detroit during September, with a total of 69.1 mm spread over approximately 8 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Detroit during September?
The average wind speed in Detroit during September is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Detroit
Explore the daily rainfall trends and prepare for Detroits September weather 💧
Typically, Detroit has 8 rainy days in September with a total of 69.1 mm of rainfall.
UV exposure in Detroit during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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