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Wisconsin Dells (WI)
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Weather in Wisconsin Dells, Wisconsin for September 2025

Your guide to Wisconsin Dells weather in September - trends and predictions

    Temperatures

  • Until now, September 2025 in Wisconsin Dells has been significantly cooler than historical averages by -2 °F, with average temperature of 20.6 °F.

  • The forecast for the upcoming days in Wisconsin Dells predicts a temperature of 25.9 °F, which is slightly above the historical average.

  • In general, the average temperature in Wisconsin Dells at the beginning of September is 20 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 24.6 °F by the end of September.

    • Rain 🌧️

  • With an average of 3 rainy days, Wisconsin Dells experiences minimal rainfall in September.

    • More

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Average dry days
27
Dry days
Average rainy days
3
Rainy days
Average snowy days
0
Snow days
Average temperatures
25°/12°
Temperatures
Average wind speed
16 km/h
Avg max wind
Average humidity
68 %
Avg humidity

Wisconsin Dells Weather September

Move between months or click on a day
August
October
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Sunny
22°
2
Sunny
23°
3
Cloudy
21°
4
Sunny
19°
5
Patchy rain possible
20°
6
Fog
16°
7
Sunny
19°
8
Sunny
20°
9
Sunny
25°
10
Partly cloudy
25°
11
Partly cloudy
26°
12
Sunny
25°
13
Overcast
27°
14
Partly cloudy
28°
15
Patchy rain possible
29°
16
Sunny
30°
17
Sunny
29°
18
Cloudy
29°
19
Patchy rain possible
25°
20
Patchy rain possible
25°
21
Patchy rain possible
27°
22
Patchy rain possible
23°
23
Sunny
25°
24
Sunny
26°
25
Sunny
27°
26
Sunny
31°
27
Sunny
17°
28
Sunny
21°
29
Sunny
28°
30
Fog
22°

Temperatures trend during September in Wisconsin Dells

See the weather trend as well as the moving average line

September weather in Wisconsin Dells day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
Sept. 1 Sunny
Sunny
 22° /10° 0 mm 6
Sept. 2 Sunny
Sunny
 23° /11° 0 mm 6
Sept. 3 Cloudy
Cloudy
 21° /10° 0 mm 5
Sept. 4 Sunny
Sunny
 19° /7° 0 mm 5
Sept. 5 Patchy rain possible
Patchy rain possible
 20° /10° 4 mm 5
Sept. 6 Fog
Fog
 16° /6° 0 mm 4
Sept. 7 Sunny
Sunny
 19° /3° 0 mm 5
Sept. 8 Sunny
Sunny
 20° /4° 0 mm 5
Sept. 9 Sunny
Sunny
 25° /11° 0 mm 7
Sept. 10 Partly cloudy
Partly cloudy
 25° /13° 0 mm 6
Sept. 11 Partly cloudy
Partly cloudy
 26° /15° 0 mm 6
Sept. 12 Sunny
Sunny
 25° /13° 0 mm 6
Sept. 13 Overcast
Overcast
 27° /16° 0 mm 6
Sept. 14 Partly cloudy
Partly cloudy
 28° /14° 0 mm 7
Sept. 15 Patchy rain possible
Patchy rain possible
 29° /15° 0.9 mm 6
Sept. 16 Sunny
Sunny
 30° /12° 0 mm 1.3
Sept. 17 Sunny
Sunny
 29° /14° 0 mm 1.4
Sept. 18 Cloudy
Cloudy
 29° /11° 0 mm 1.4
Sept. 19 Patchy rain possible
Patchy rain possible
 25° /14° 1.1 mm 1
Sept. 20 Patchy rain possible
Patchy rain possible
 25° /14° 4.3 mm 0
Sept. 21 Patchy rain possible
Patchy rain possible
 27° /18° 3.6 mm 5
Sept. 22 Patchy rain possible
Patchy rain possible
 23° /16° 1.7 mm 4
Sept. 23 Sunny
Sunny
 25° /11° 0 mm 5
Sept. 24 Sunny
Sunny
 26° /14° 0 mm 5
Sept. 25 Sunny
Sunny
 27° /14° 0 mm 5
Sept. 26 Sunny
Sunny
 31° /19° 0 mm 6
Sept. 27 Sunny
Sunny
 17° /9° 0 mm 4
Sept. 28 Sunny
Sunny
 21° /6° 0 mm 4
Sept. 29 Sunny
Sunny
 28° /12° 0 mm 5
Sept. 30 Fog
Fog
 22° /12° 0 mm 5
Next
Important Notice
Our weather forecast for Wisconsin Dells 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 Wisconsin Dells forecast closer to your planned date for the most up-to-date weather information.
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Wisconsin Dells in September - FAQ

What are the expected maximum and minimum temperatures in Wisconsin Dells during September?
Enjoy moderate daytime temperatures of up to 25° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Wisconsin Dells during September?
In September, Wisconsin Dells can expect light to moderate rainfall, totaling 48.2 mm across approximately 3 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Wisconsin Dells during September?
The average wind speed in Wisconsin Dells during September is 16 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Wisconsin Dells

Explore the daily rainfall trends and prepare for Wisconsin Dellss September weather 💧

UV exposure in Wisconsin Dells during September

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

Quick links

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Location coordinates Where is Wisconsin Dells?

Get accurate weather forecasts for Wisconsin Dells, located at latitude 43.627 and longitude -89.771. Stay updated with localized weather information tailored for Wisconsin Dells.

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