Peoria
September
Weather in Peoria for September 2025
Your guide to Peoria weather in September - trends and predictions
In general, the average temperature in Peoria at the beginning of September is 39.9 °F. As the month progressed, temperatures tended to slightly increase, reaching an average of 40.1 °F by the end of September.
With an average of 2 rainy days, Peoria experiences minimal rainfall in September, ensuring that most days remain pleasantly dry.
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28
Dry days
2
Rainy days
0
Snow days
39°/24°
Temperatures
17 km/h
Avg max wind
24 %
Avg humidity
Peoria in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  37° | 2  38° | 3 40° | 4  40° | 5 41° | 6 41° | 7 42° |
| 8 41° | 9 42° | 10  41° | 11 40° | 12  37° | 13  38° | 14 38° |
| 15 36° | 16 38° | 17 35° | 18 36° | 19 36° | 20 34° | 21 33° |
| 22 35° | 23  38° | 24 38° | 25 41° | 26 41° | 27 41° | 28 41° |
| 29 40° | 30 39° |
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Temperatures trend during September in Peoria
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 | Light rain shower | 37° /26° | 22.1 mm | 9 | |
| Sept. 2 | Partly cloudy | 38° /28° | 0 mm | 9 | |
| Sept. 3 | Partly cloudy | 40° /29° | 0 mm | 10 | |
| Sept. 4 | Sunny | 40° /30° | 0 mm | 10 | |
| Sept. 5 | Sunny | 41° /29° | 0 mm | 10 | |
| Sept. 6 | Sunny | 41° /29° | 0 mm | 10 | |
| Sept. 7 | Sunny | 42° /29° | 0.2 mm | 10 | |
| Sept. 8 | Partly cloudy | 41° /29° | 0 mm | 9 | |
| Sept. 9 | Sunny | 42° /29° | 0 mm | 10 | |
| Sept. 10 | Overcast | 41° /30° | 0 mm | 10 | |
| Sept. 11 | Overcast | 40° /31° | 0 mm | 10 | |
| Sept. 12 | Thundery outbreaks possible | 37° /29° | 0 mm | 9 | |
| Sept. 13 | Patchy light rain with thunder | 38° /27° | 1.5 mm | 9 | |
| Sept. 14 | Sunny | 38° /25° | 0 mm | 9 | |
| Sept. 15 | Sunny | 36° /26° | 3.3 mm | 8 | |
| Sept. 16 | Sunny | 38° /25° | 0.1 mm | 10 | |
| Sept. 17 | Overcast | 35° /23° | 0 mm | 8 | |
| Sept. 18 | Sunny | 36° /21° | 0 mm | 9 | |
| Sept. 19 | Sunny | 36° /21° | 0 mm | 9 | |
| Sept. 20 | Overcast | 34° /22° | 0 mm | 8 | |
| Sept. 21 | Sunny | 33° /20° | 0 mm | 8 | |
| Sept. 22 | Partly cloudy | 35° /21° | 0 mm | 9 | |
| Sept. 23 | Cloudy | 38° /22° | 0 mm | 9 | |
| Sept. 24 | Sunny | 38° /22° | 0 mm | 9 | |
| Sept. 25 | Sunny | 41° /23° | 0 mm | 10 | |
| Sept. 26 | Sunny | 41° /25° | 0 mm | 10 | |
| Sept. 27 | Overcast | 41° /24° | 0 mm | 9 | |
| Sept. 28 | Overcast | 41° /25° | 0 mm | 9 | |
| Sept. 29 | Partly cloudy | 40° /25° | 0 mm | 10 | |
| Sept. 30 | Sunny | 39° /23° | 0 mm | 10 | |
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Important Notice
Our weather forecast for Peoria 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 Peoria forecast closer to your planned date for the most up-to-date weather information.
Peoria in September - FAQ
What are the expected maximum and minimum temperatures in Peoria during September?
With daytime temperatures soaring above 39° and not dropping much below 24° at night, September in Peoria is quite hot. Staying hydrated and avoiding peak sun hours is advisable.
How much rainfall should be expected in Peoria during September?
In September, Peoria can expect light to moderate rainfall, totaling 45.9 mm across approximately 2 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Peoria during September?
The average wind speed in Peoria during September is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Peoria
Explore the daily rainfall trends and prepare for Peorias September weather 💧
UV exposure in Peoria during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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