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Weather in Milwaukee for September 2025

Your guide to Milwaukee weather in September - trends and predictions

    Temperatures

  • In general, the average temperature in Milwaukee at the beginning of September is 27.7 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 21.6 °F by the end of September.

  • Rain 🌧️

  • Milwaukee experiences moderate rainfall in September, with an average of 9 rainy days and a total precipitation of 45.1 mm.

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Average dry days
21
Dry days
Average rainy days
9
Rainy days
Average snowy days
0
Snow days
Average temperatures
24°/14°
Temperatures
Average wind speed
17 km/h
Avg max wind
Average humidity
69 %
Avg humidity

Milwaukee in September average weather

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Temperatures trend during September in Milwaukee

See the weather trend as well as the moving average line

September weather day by day

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Date Weather Temperatures Rain UV More
Sept. 1 Mist
Mist
26° /13° 0 mm 7
Sept. 2 Partly cloudy
Partly cloudy
29° /14° 0 mm 8
Sept. 3 Cloudy
Cloudy
31° /15° 0 mm 7
Sept. 4 Overcast
Overcast
32° /16° 0 mm 8
Sept. 5 Overcast
Overcast
32° /19° 2 mm 8
Sept. 6 Light rain shower
Light rain shower
26° /14° 2.4 mm 6
Sept. 7 Overcast
Overcast
18° /9° 0.8 mm 5
Sept. 8 Cloudy
Cloudy
21° /8° 0 mm 6
Sept. 9 Mist
Mist
24° /12° 0 mm 6
Sept. 10 Mist
Mist
27° /11° 0 mm 7
Sept. 11 Light rain
Light rain
25° /14° 2.1 mm 6
Sept. 12 Overcast
Overcast
24° /13° 0 mm 6
Sept. 13 Light rain shower
Light rain shower
21° /14° 3.9 mm 5
Sept. 14 Mist
Mist
23° /13° 0 mm 6
Sept. 15 Mist
Mist
28° /13° 0 mm 7
Sept. 16 Patchy light drizzle
Patchy light drizzle
28° /16° 1.8 mm 7
Sept. 17 Light rain shower
Light rain shower
23° /14° 1.8 mm 6
Sept. 18 Cloudy
Cloudy
22° /11° 0 mm 5
Sept. 19 Thundery outbreaks possible
Thundery outbreaks possible
23° /14° 0 mm 5
Sept. 20 Thundery outbreaks possible
Thundery outbreaks possible
27° /15° 0.1 mm 6
Sept. 21 Patchy rain possible
Patchy rain possible
28° /15° 0 mm 7
Sept. 22 Mist
Mist
24° /16° 11.4 mm 6
Sept. 23 Fog
Fog
22° /12° 0 mm 5
Sept. 24 Overcast
Overcast
21° /13° 0 mm 5
Sept. 25 Patchy rain possible
Patchy rain possible
22° /13° 0.1 mm 5
Sept. 26 Light rain shower
Light rain shower
22° /14° 15.1 mm 5
Sept. 27 Light rain shower
Light rain shower
20° /14° 3.6 mm 5
Sept. 28 Patchy rain possible
Patchy rain possible
20° /15° 0 mm 5
Sept. 29 Fog
Fog
21° /14° 0 mm 5
Sept. 30 Overcast
Overcast
25° /15° 0 mm 6
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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.

Milwaukee in September - FAQ

What are the expected maximum and minimum temperatures in Milwaukee during September?
Enjoy moderate daytime temperatures of up to 24° 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?
In September, Milwaukee can expect light to moderate rainfall, totaling 45.1 mm across approximately 9 days. Occasional showers are possible, and planning ahead for them could be helpful.
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 💧

UV exposure in Milwaukee during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

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Location coordinates Where is Milwaukee?

Get accurate weather forecasts for Milwaukee, located at latitude 43.039 and longitude -87.906. Stay updated with localized weather information tailored for Milwaukee.

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