Milwaukee (WI)
September
Weather in Milwaukee, Wisconsin for September 2027
Your guide to Milwaukee weather in September - trends and predictions
In general, the average temperature in Milwaukee at the beginning of September is 26.2 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 21.1 °C by the end of September.
Milwaukee experiences moderate rainfall in September, with an average of 7 rainy days and a total precipitation of 121.8 mm.
Is September a good time to visit Milwaukee? check out the best time to travel to Milwaukee page.
✨ Is September a good time to visit Milwaukee? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
23
Dry days
7
Rainy days
0
Snow days
23°/14°
Temperatures
17 km/h
Avg max wind
73 %
Avg humidity
Milwaukee Weather September
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Temperatures trend during September in Milwaukee
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September weather in Milwaukee day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Sunny | 28° /14° | 0 mm | 6 | |
| Sept. 2 | Sunny | 28° /15° | 0.1 mm | 6 | |
| Sept. 3 |  Heavy rain | 28° /16° | 35.4 mm | 5 | |
| Sept. 4 |  Light rain | 29° /15° | 5.8 mm | 5 | |
| Sept. 5 |  Patchy rain possible | 27° /17° | 1 mm | 5 | |
| Sept. 6 | Light rain shower | 24° /12° | 1.2 mm | 6 | |
| Sept. 7 |  Overcast | 20° /10° | 0.4 mm | 5 | |
| Sept. 8 |  Cloudy | 23° /9° | 0 mm | 4 | |
| Sept. 9 | Light rain | 25° /15° | 6.8 mm | 5 | |
| Sept. 10 |  Mist | 26° /13° | 0 mm | 6 | |
| Sept. 11 | Patchy rain possible | 25° /15° | 1 mm | 6 | |
| Sept. 12 | Overcast | 24° /14° | 0.1 mm | 5 | |
| Sept. 13 | Light rain | 21° /14° | 6.4 mm | 5 | |
| Sept. 14 | Mist | 23° /14° | 0.1 mm | 6 | |
| Sept. 15 | Light rain | 26° /15° | 5.4 mm | 6 | |
| Sept. 16 | Patchy light drizzle | 25° /15° | 0.9 mm | 5 | |
| Sept. 17 | Patchy rain possible | 23° /14° | 1 mm | 5 | |
| Sept. 18 | Patchy rain possible | 22° /14° | 1.2 mm | 5 | |
| Sept. 19 |  Thundery outbreaks possible | 21° /16° | 14 mm | 4 | |
| Sept. 20 | Thundery outbreaks possible | 24° /16° | 8.3 mm | 5 | |
| Sept. 21 | Patchy rain possible | 23° /16° | 0.7 mm | 5 | |
| Sept. 22 |  Moderate rain | 21° /15° | 16.8 mm | 5 | |
| Sept. 23 | Patchy rain possible | 20° /14° | 1.8 mm | 5 | |
| Sept. 24 | Overcast | 19° /14° | 0 mm | 5 | |
| Sept. 25 | Patchy rain possible | 20° /13° | 0.2 mm | 4 | |
| Sept. 26 | Light rain | 22° /13° | 7.6 mm | 5 | |
| Sept. 27 | Patchy rain possible | 22° /14° | 1.8 mm | 4 | |
| Sept. 28 | Patchy rain possible | 20° /14° | 0 mm | 5 | |
| Sept. 29 | Fog | 22° /13° | 0 mm | 4 | |
| Sept. 30 | Light rain | 23° /15° | 3.7 mm | 4 | |
| Next | |||||
Important Notice
Our weather forecast for Milwaukee 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 Milwaukee forecast closer to your planned date for the most up-to-date weather information.
Change Month
Milwaukee in September - FAQ
What are the expected maximum and minimum temperatures in Milwaukee during September?
Enjoy moderate daytime temperatures of up to 23° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Milwaukee during September?
Significant rainfall exceeding 121.8 mm is expected in Milwaukee during September, occurring over more than 7 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Milwaukee during September?
The average wind speed in Milwaukee during September is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Milwaukee
Explore the daily rainfall trends and prepare for Milwaukees September weather 💧
Typically, Milwaukee has 7 rainy days in September with a total of 121.8 mm of rainfall.
UV exposure in Milwaukee during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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