Madison (WI)
September
Weather in Madison, Wisconsin for September 2026
Your guide to Madison weather in September - trends and predictions
So far, September 2026 in Madison shows a warmer trend than usual by 3.8 °F.
The forecast for the next days in Madison predicts a temperature of 20.3 °F, which is cooler than the historical average.
In general, the average temperature in Madison at the beginning of September is 26.3 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 23.1 °F by the end of September.
Madison experiences moderate rainfall in September, with an average of 10 rainy days and a total precipitation of 67.7 mm.
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Temperatures
Rain 🌧️
More
20
Dry days
10
Rainy days
0
Snow days
24°/12°
Temperatures
17 km/h
Avg max wind
73 %
Avg humidity
Madison Weather September
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Temperatures trend during September in Madison
See the weather trend as well as the moving average line
September weather in Madison day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Sunny | 28° /12° | 1.4 mm | 6 | |
| Sept. 2 |  Partly cloudy | 28° /14° | 0.3 mm | 6 | |
| Sept. 3 |  Cloudy | 29° /14° | 5.9 mm | 6 | |
| Sept. 4 | Sunny | 29° /13° | 11.1 mm | 7 | |
| Sept. 5 | Sunny | 26° /15° | 0.6 mm | 6 | |
| Sept. 6 |  Mist | 22° /10° | 0.1 mm | 5 | |
| Sept. 7 |  Overcast | 22° /8° | 0.5 mm | 5 | |
| Sept. 8 | Mist | 24° /9° | 0 mm | 4 | |
| Sept. 9 | Overcast | 26° /12° | 1.9 mm | 5 | |
| Sept. 10 | Overcast | 26° /13° | 0 mm | 7 | |
| Sept. 11 | Sunny | 24° /12° | 0.9 mm | 6 | |
| Sept. 12 | Sunny | 26° /17° | 0 mm | 6.4 | |
| Sept. 13 | Sunny | 18° /12° | 0 mm | 5.3 | |
| Sept. 14 | Sunny | 20° /8° | 0.6 mm | 1.5 | |
| Sept. 15 | Overcast | 24° /16° | 18.7 mm | 5 | |
| Sept. 16 |  Light rain shower | 18° /15° | 4.7 mm | 4 | |
| Sept. 17 | Light rain shower | 27° /14° | 7 mm | 6 | |
| Sept. 18 | Light rain shower | 21° /14° | 7.4 mm | 4 | |
| Sept. 19 | Light rain shower | 17° /11° | 11.4 mm | 5 | |
| Sept. 20 | Sunny | 19° /10° | 0 mm | 5 | |
| Sept. 21 | Sunny | 19° /10° | 0 mm | 5 | |
| Sept. 22 | Sunny | 21° /11° | 0 mm | 6 | |
| Sept. 23 | Sunny | 18° /11° | 0 mm | 5 | |
| Sept. 24 | Sunny | 14° /6° | 0 mm | 4 | |
| Sept. 25 | Overcast | 22° /9° | 0 mm | 6 | |
| Sept. 26 |  Moderate or heavy rain with thunder | 25° /11° | 16.9 mm | 6 | |
| Sept. 27 | Patchy rain possible | 24° /12° | 0.2 mm | 5 | |
| Sept. 28 | Sunny | 24° /11° | 0 mm | 6 | |
| Sept. 29 | Fog | 26° /11° | 0 mm | 6 | |
| Sept. 30 | Fog | 27° /13° | 0 mm | 6 | |
| Next | |||||
Important Notice
Our weather forecast for Madison 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 Madison forecast closer to your planned date for the most up-to-date weather information.
Change Month
Madison in September - FAQ
What are the expected maximum and minimum temperatures in Madison during September?
Enjoy moderate daytime temperatures of up to 24° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Madison during September?
Moderate rainfall is anticipated in Madison during September, with a total of 67.7 mm spread over approximately 10 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Madison during September?
The average wind speed in Madison during September is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Madison
Explore the daily rainfall trends and prepare for Madisons September weather 💧
Typically, Madison has 10 rainy days in September with a total of 67.7 mm of rainfall.
UV exposure in Madison during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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