Springfield (IL)
September
Weather in Springfield, Illinois for September 2025
Your guide to Springfield weather in September - trends and predictions
Until now, September 2025 in Springfield is slightly cooler than the historical average by -1.2 °F.
The forecast for the coming days of September 2025 predicts a temperature of 32.6 °F , which is warmer than usual.
In general, the average temperature in Springfield at the beginning of September is 25.1 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 31.9 °F by the end of September.
With an average of 3 rainy days, Springfield experiences minimal rainfall in September.
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Temperatures
Rain 🌧️
More
27
Dry days
3
Rainy days
0
Snow days
27°/15°
Temperatures
19 km/h
Avg max wind
61 %
Avg humidity
Springfield Weather September
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Temperatures trend during September in Springfield
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September weather in Springfield day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Sunny | 27° /13° | 0 mm | 7 | |
| Sept. 2 | Sunny | 26° /11° | 0 mm | 6 | |
| Sept. 3 |  Overcast | 25° /13° | 0 mm | 6 | |
| Sept. 4 | Sunny | 27° /12° | 0 mm | 7 | |
| Sept. 5 |  Mist | 25° /14° | 0 mm | 6 | |
| Sept. 6 |  Partly cloudy | 24° /11° | 0.1 mm | 6 | |
| Sept. 7 | Sunny | 22° /8° | 0 mm | 6 | |
| Sept. 8 | Sunny | 25° /6° | 0 mm | 7 | |
| Sept. 9 | Sunny | 27° /9° | 0 mm | 6 | |
| Sept. 10 | Sunny | 29° /13° | 0 mm | 7 | |
| Sept. 11 | Sunny | 32° /15° | 0 mm | 8 | |
| Sept. 12 | Sunny | 32° /15° | 0 mm | 8 | |
| Sept. 13 |  Light rain | 29° /19° | 1.5 mm | 7 | |
| Sept. 14 | Partly cloudy | 34° /19° | 0 mm | 9 | |
| Sept. 15 | Sunny | 35° /19° | 0 mm | 1.5 | |
| Sept. 16 | Partly cloudy | 31° /17° | 0 mm | 1.5 | |
| Sept. 17 | Partly cloudy | 30° /18° | 0 mm | 1.5 | |
| Sept. 18 | Sunny | 36° /19° | 0 mm | 1.4 | |
| Sept. 19 |  Patchy rain possible | 34° /20° | 0.2 mm | 0 | |
| Sept. 20 | Patchy rain possible | 30° /19° | 0.8 mm | 5 | |
| Sept. 21 | Patchy rain possible | 28° /19° | 0.8 mm | 5 | |
| Sept. 22 | Patchy rain possible | 24° /17° | 1.6 mm | 4 | |
| Sept. 23 | Partly cloudy | 33° /17° | 0 mm | 6 | |
| Sept. 24 | Sunny | 34° /19° | 0 mm | 7 | |
| Sept. 25 | Sunny | 33° /17° | 0 mm | 6 | |
| Sept. 26 | Sunny | 35° /19° | 0 mm | 7 | |
| Sept. 27 | Sunny | 37° /21° | 0 mm | 7 | |
| Sept. 28 | Sunny | 37° /22° | 0 mm | 7 | |
| Sept. 29 | Overcast | 23° /18° | 0 mm | 5 | |
| Sept. 30 | Mist | 24° /17° | 0 mm | 5 | |
| Next | |||||
Important Notice
Our weather forecast for Springfield 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 Springfield forecast closer to your planned date for the most up-to-date weather information.
Change Month
Springfield in September - FAQ
What are the expected maximum and minimum temperatures in Springfield during September?
During September, expect a variety of temperatures with highs around 27° and lows near 15°, suitable for diverse activities and preferences.
How much rainfall should be expected in Springfield during September?
Significant rainfall exceeding 167.3 mm is expected in Springfield during September, occurring over more than 3 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Springfield during September?
The average wind speed in Springfield during September is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Springfield
Explore the daily rainfall trends and prepare for Springfields September weather 💧
UV exposure in Springfield during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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