Appleton (WI)
September
Weather in Appleton, Wisconsin for September 2025
Your guide to Appleton weather in September - trends and predictions
The forecast for the first days of September 2025 in Appleton predicts temperatures to be around 22 °F, close to the historical average.
In general, the average temperature in Appleton at the beginning of September is 22.1 °F. As the month progressed, temperatures tended to moderately rise, reaching an average of 23.6 °F by the end of September.
With an average of 5 rainy days, Appleton experiences minimal rainfall in September.
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Temperatures
Rain 🌧️
More
25
Dry days
5
Rainy days
0
Snow days
24°/12°
Temperatures
15 km/h
Avg max wind
70 %
Avg humidity
Appleton Weather September
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Temperatures trend during September in Appleton
See the weather trend as well as the moving average line
September weather in Appleton day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Patchy rain possible | 20° /16° | 0.1 mm | 4 | |
| Sept. 2 |  Partly cloudy | 27° /14° | 0 mm | 5 | |
| Sept. 3 | Patchy rain possible | 21° /15° | 1.5 mm | 4 | |
| Sept. 4 |  Sunny | 20° /12° | 0 mm | 5 | |
| Sept. 5 | Sunny | 21° /12° | 0 mm | 5 | |
| Sept. 6 | Sunny | 22° /8° | 0 mm | 4 | |
| Sept. 7 | Sunny | 24° /10° | 0 mm | 5 | |
| Sept. 8 | Partly cloudy | 22° /7° | 0 mm | 6 | |
| Sept. 9 | Sunny | 26° /13° | 0 mm | 7 | |
| Sept. 10 | Partly cloudy | 26° /15° | 0 mm | 7 | |
| Sept. 11 |  Moderate rain at times | 27° /18° | 0.7 mm | 6 | |
| Sept. 12 | Sunny | 29° /16° | 0 mm | 7 | |
| Sept. 13 |  Overcast | 27° /17° | 0 mm | 6 | |
| Sept. 14 | Overcast | 27° /17° | 0 mm | 6 | |
| Sept. 15 | Moderate rain at times | 29° /18° | 0.6 mm | 6 | |
| Sept. 16 | Sunny | 29° /18° | 0 mm | 7 | |
| Sept. 17 | Partly cloudy | 27° /15° | 0 mm | 7 | |
| Sept. 18 | Overcast | 26° /11° | 0 mm | 6 | |
| Sept. 19 | Overcast | 27° /11° | 0.1 mm | 6 | |
| Sept. 20 | Overcast | 25° /17° | 1.3 mm | 6 | |
| Sept. 21 | Sunny | 28° /12° | 0 mm | 7 | |
| Sept. 22 | Moderate or heavy rain shower | 21° /13° | 20.2 mm | 5 | |
| Sept. 23 | Sunny | 20° /7° | 0 mm | 6 | |
| Sept. 24 | Overcast | 19° /8° | 0 mm | 4 | |
| Sept. 25 | Sunny | 24° /8° | 0 mm | 6 | |
| Sept. 26 | Sunny | 26° /10° | 0 mm | 7 | |
| Sept. 27 | Overcast | 26° /11° | 0 mm | 6 | |
| Sept. 28 | Partly cloudy | 24° /12° | 0 mm | 6 | |
| Sept. 29 | Overcast | 24° /11° | 0 mm | 5 | |
| Sept. 30 |  Fog | 22° /9° | 0 mm | 5 | |
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Important Notice
Our weather forecast for Appleton 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 Appleton forecast closer to your planned date for the most up-to-date weather information.
Change Month
Appleton in September - FAQ
What are the expected maximum and minimum temperatures in Appleton 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 Appleton during September?
In September, Appleton can expect light to moderate rainfall, totaling 27.5 mm across approximately 5 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Appleton during September?
The average wind speed in Appleton during September is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Appleton
Explore the daily rainfall trends and prepare for Appletons September weather 💧
UV exposure in Appleton during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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