Grand Traverse County (Traverse City)
September
Weather in Grand Traverse County, Michigan for September 2026
Your guide to Grand Traverse County weather in September - trends and predictions
Until now, September 2026 in Grand Traverse County is slightly cooler than the historical average by 1 °F.
The forecast for the next days in Grand Traverse County predicts a temperature of 17.8 °F, which is cooler than the historical average.
In general, the average temperature in Grand Traverse County at the beginning of September is 22.6 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 20.6 °F by the end of September.
Grand Traverse County experiences moderate rainfall in September, with an average of 10 rainy days and a total precipitation of 84.1 mm.
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Temperatures
Rain 🌧️
More
20
Dry days
10
Rainy days
0
Snow days
23°/13°
Temperatures
16 km/h
Avg max wind
70 %
Avg humidity
Grand Traverse County Weather September
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Temperatures trend during September in Grand Traverse County
See the weather trend as well as the moving average line
September weather in Grand Traverse County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Patchy rain possible | 27° /14° | 0.1 mm | 6 | |
| Sept. 2 |  Sunny | 24° /14° | 4.7 mm | 5 | |
| Sept. 3 | Sunny | 23° /13° | 11.3 mm | 5 | |
| Sept. 4 | Sunny | 22° /12° | 0.4 mm | 4 | |
| Sept. 5 | Sunny | 24° /13° | 4.2 mm | 5 | |
| Sept. 6 | Light rain shower | 19° /10° | 2.5 mm | 4 | |
| Sept. 7 | Patchy rain possible | 19° /10° | 4.2 mm | 4 | |
| Sept. 8 |  Partly cloudy | 23° /10° | 0.5 mm | 4 | |
| Sept. 9 | Sunny | 25° /15° | 0.6 mm | 4 | |
| Sept. 10 |  Overcast | 23° /12° | 0 mm | 6 | |
| Sept. 11 | Patchy rain possible | 27° /12° | 0 mm | 6 | |
| Sept. 12 | Sunny | 26° /14° | 1.4 mm | 5 | |
| Sept. 13 | Sunny | 24° /15° | 0 mm | 5 | |
| Sept. 14 | Partly cloudy | 27° /13° | 0 mm | 7 | |
| Sept. 15 | Sunny | 26° /14° | 10.2 mm | 5 | |
| Sept. 16 | Sunny | 26° /14° | 0 mm | 5 | |
| Sept. 17 | Overcast | 25° /14° | 0.1 mm | 5 | |
| Sept. 18 |  Mist | 23° /13° | 0.1 mm | 4 | |
| Sept. 19 | Overcast | 22° /14° | 0 mm | 4 | |
| Sept. 20 |  Moderate rain at times | 23° /13° | 2.4 mm | 4 | |
| Sept. 21 | Fog | 20° /12° | 18.2 mm | 4 | |
| Sept. 22 | Light rain shower | 20° /12° | 2.9 mm | 4 | |
| Sept. 23 | Sunny | 22° /14° | 12.8 mm | 6 | |
| Sept. 24 | Sunny | 22° /10° | 0 mm | 5 | |
| Sept. 25 | Overcast | 20° /13° | 0 mm | 4.9 | |
| Sept. 26 | Sunny | 20° /11° | 0 mm | 4.9 | |
| Sept. 27 | Sunny | 20° /13° | 0 mm | 4.7 | |
| Sept. 28 | Sunny | 21° /13° | 0 mm | 6 | |
| Sept. 29 | Sunny | 23° /13° | 0 mm | 6 | |
| Sept. 30 |  Light rain | 18° /10° | 40.5 mm | 4 | |
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Important Notice
Our weather forecast for Grand Traverse County 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 Grand Traverse County forecast closer to your planned date for the most up-to-date weather information.
Change Month
Grand Traverse County in September - FAQ
What are the expected maximum and minimum temperatures in Grand Traverse County during September?
Enjoy moderate daytime temperatures of up to 23° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Grand Traverse County during September?
Moderate rainfall is anticipated in Grand Traverse County during September, with a total of 84.1 mm spread over approximately 10 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Grand Traverse County during September?
The average wind speed in Grand Traverse County during September is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Grand Traverse County
Explore the daily rainfall trends and prepare for Grand Traverse Countys September weather 💧
Typically, Grand Traverse County has 10 rainy days in September with a total of 84.1 mm of rainfall.
UV exposure in Grand Traverse County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Where is Grand Traverse County?Get accurate weather forecasts for Grand Traverse County, located at latitude 44.763 and longitude -85.621. Stay updated with localized weather information tailored for Grand Traverse County.
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