Willmar (MN)
September
Weather in Willmar, Minnesota for September 2027
Your guide to Willmar weather in September - trends and predictions
In general, the average temperature in Willmar at the beginning of September is 23.3 °C. As the month progressed, temperatures tended to slightly increase, reaching an average of 23.5 °C by the end of September.
Willmar experiences moderate rainfall in September, with an average of 9 rainy days and a total precipitation of 110 mm.
Is September a good time to visit Willmar? check out the best time to travel to Willmar page.
✨ Is September a good time to visit Willmar? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
21
Dry days
9
Rainy days
0
Snow days
24°/13°
Temperatures
22 km/h
Avg max wind
72 %
Avg humidity
Willmar Weather September
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Temperatures trend during September in Willmar
See the weather trend as well as the moving average line
September weather in Willmar day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Patchy rain possible | 24° /13° | 2.3 mm | 4 | |
| Sept. 2 |  Light rain | 25° /14° | 4.3 mm | 4 | |
| Sept. 3 | Patchy rain possible | 25° /15° | 1.2 mm | 5 | |
| Sept. 4 | Light rain | 25° /12° | 7.9 mm | 6 | |
| Sept. 5 |  Partly cloudy | 22° /14° | 0.3 mm | 4 | |
| Sept. 6 | Partly cloudy | 20° /12° | 0 mm | 4 | |
| Sept. 7 |  Sunny | 22° /9° | 0.4 mm | 5 | |
| Sept. 8 | Patchy rain possible | 27° /13° | 1.3 mm | 5 | |
| Sept. 9 | Sunny | 25° /16° | 0 mm | 6 | |
| Sept. 10 | Patchy rain possible | 27° /14° | 0.4 mm | 6 | |
| Sept. 11 | Light rain | 27° /15° | 3 mm | 6 | |
| Sept. 12 |  Moderate rain | 25° /15° | 10.5 mm | 6 | |
| Sept. 13 | Sunny | 25° /16° | 0 mm | 6 | |
| Sept. 14 | Moderate rain | 26° /16° | 12.1 mm | 5 | |
| Sept. 15 |  Overcast | 27° /17° | 0.2 mm | 5.9 | |
| Sept. 16 | Light rain | 28° /16° | 4.1 mm | 5.8 | |
| Sept. 17 | Moderate rain | 25° /16° | 10.5 mm | 4 | |
| Sept. 18 | Light rain | 25° /14° | 7.9 mm | 5 | |
| Sept. 19 | Light rain | 24° /15° | 7.6 mm | 5 | |
| Sept. 20 | Light rain | 24° /13° | 4.6 mm | 5 | |
| Sept. 21 |  Mist | 22° /12° | 0.2 mm | 5 | |
| Sept. 22 | Patchy rain possible | 22° /10° | 1.1 mm | 5 | |
| Sept. 23 |  Patchy light rain with thunder | 23° /11° | 15.6 mm | 5 | |
| Sept. 24 | Patchy rain possible | 20° /12° | 1.3 mm | 4 | |
| Sept. 25 | Light rain shower | 24° /12° | 0.3 mm | 5 | |
| Sept. 26 | Light rain | 22° /12° | 5.3 mm | 4.9 | |
| Sept. 27 | Sunny | 24° /13° | 0.2 mm | 4.8 | |
| Sept. 28 | Sunny | 25° /12° | 0 mm | 4.7 | |
| Sept. 29 | Light rain | 25° /14° | 6.8 mm | 4.6 | |
| Sept. 30 | Fog | 26° /16° | 0.5 mm | 4.5 | |
| Next | |||||
Important Notice
Our weather forecast for Willmar 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 Willmar forecast closer to your planned date for the most up-to-date weather information.
Change Month
Willmar in September - FAQ
What are the expected maximum and minimum temperatures in Willmar during September?
Enjoy moderate daytime temperatures of up to 24° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Willmar during September?
Significant rainfall exceeding 110 mm is expected in Willmar during September, occurring over more than 9 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Willmar during September?
The average wind speed in Willmar during September is 22 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Willmar
Explore the daily rainfall trends and prepare for Willmars September weather 💧
Typically, Willmar has 9 rainy days in September with a total of 110 mm of rainfall.
UV exposure in Willmar during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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