Aurora (IL)
September
Weather in Aurora, Illinois for September 2026
Your guide to Aurora weather in September - trends and predictions
So far, September 2026 in Aurora is slightly warmer than the historical average by 2 °F.
The forecast for the next days in Aurora predicts a temperature of 20.9 °F, which is cooler than the historical average.
In general, the average temperature in Aurora at the beginning of September is 28.1 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 19.6 °F by the end of September.
The climate of Aurora in September is notably wet, with an average of 11 rainy days, and a total of 87.5 mm of precipitation.
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Temperatures
Rain 🌧️
More
19
Dry days
11
Rainy days
0
Snow days
26°/13°
Temperatures
17 km/h
Avg max wind
69 %
Avg humidity
Aurora Weather September
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Temperatures trend during September in Aurora
See the weather trend as well as the moving average line
September weather in Aurora day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Sunny | 29° /14° | 0.6 mm | 6 | |
| Sept. 2 | Sunny | 30° /15° | 0 mm | 7 | |
| Sept. 3 |  Cloudy | 31° /15° | 13.4 mm | 7 | |
| Sept. 4 |  Fog | 30° /15° | 0 mm | 7 | |
| Sept. 5 |  Overcast | 28° /16° | 0.6 mm | 7 | |
| Sept. 6 |  Patchy rain possible | 25° /12° | 1.9 mm | 5 | |
| Sept. 7 | Mist | 24° /9° | 0 mm | 6 | |
| Sept. 8 | Mist | 25° /10° | 0 mm | 5 | |
| Sept. 9 | Mist | 25° /12° | 12.1 mm | 5 | |
| Sept. 10 | Overcast | 27° /12° | 0 mm | 6 | |
| Sept. 11 | Sunny | 27° /14° | 7.9 mm | 7 | |
| Sept. 12 | Overcast | 27° /13° | 0 mm | 6 | |
| Sept. 13 | Mist | 25° /14° | 0.4 mm | 5 | |
| Sept. 14 | Mist | 27° /13° | 0 mm | 7 | |
| Sept. 15 | Mist | 29° /16° | 3.5 mm | 6 | |
| Sept. 16 | Sunny | 28° /15° | 1.5 mm | 6 | |
| Sept. 17 | Light rain shower | 27° /18° | 6.3 mm | 6.3 | |
| Sept. 18 | Sunny | 22° /17° | 0 mm | 5.5 | |
| Sept. 19 | Light rain shower | 26° /19° | 6.7 mm | 0.8 | |
| Sept. 20 | Light rain shower | 21° /16° | 15.7 mm | 2.2 | |
| Sept. 21 | Patchy rain possible | 20° /13° | 3.9 mm | 0.7 | |
| Sept. 22 |  Partly cloudy | 19° /14° | 0 mm | 5 | |
| Sept. 23 | Sunny | 21° /13° | 2.8 mm | 6 | |
| Sept. 24 | Sunny | 17° /10° | 0 mm | 5 | |
| Sept. 25 | Sunny | 16° /7° | 0 mm | 5 | |
| Sept. 26 | Sunny | 18° /8° | 0 mm | 5 | |
| Sept. 27 | Overcast | 20° /10° | 0 mm | 5 | |
| Sept. 28 | Sunny | 24° /12° | 0 mm | 6 | |
| Sept. 29 | Overcast | 24° /15° | 0 mm | 6 | |
| Sept. 30 | Overcast | 18° /13° | 0 mm | 5 | |
| Next | |||||
Important Notice
Our weather forecast for Aurora 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 Aurora forecast closer to your planned date for the most up-to-date weather information.
Change Month
Aurora in September - FAQ
What are the expected maximum and minimum temperatures in Aurora during September?
Enjoy moderate daytime temperatures of up to 26° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Aurora during September?
Moderate rainfall is anticipated in Aurora during September, with a total of 87.5 mm spread over approximately 11 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Aurora during September?
The average wind speed in Aurora during September is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Aurora
Explore the daily rainfall trends and prepare for Auroras September weather 💧
Typically, Aurora has 11 rainy days in September with a total of 87.5 mm of rainfall.
UV exposure in Aurora during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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