Energy (IL)
September
Weather in Energy, Illinois for September 2026
Your guide to Energy weather in September - trends and predictions
So far, September 2026 in Energy shows a warmer trend than usual by 3.3 °F.
Expect cooler weather in the next days in Energy with the forecast suggesting a temperature of 25.6 °F, lower than the historical average.
In general, the average temperature in Energy at the beginning of September is 30.7 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 26.1 °F by the end of September.
Energy in September brings notable rainfall, with an average of 18 rainy days and a total precipitation of 296.6 mm.
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Temperatures
Rain 🌧️
More
12
Dry days
18
Rainy days
0
Snow days
28°/17°
Temperatures
17 km/h
Avg max wind
66 %
Avg humidity
Energy Weather September
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Temperatures trend during September in Energy
See the weather trend as well as the moving average line
September weather in Energy day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Fog | 33° /18° | 1.5 mm | 7 | |
| Sept. 2 |  Sunny | 32° /18° | 0 mm | 7 | |
| Sept. 3 |  Overcast | 31° /17° | 7.8 mm | 7 | |
| Sept. 4 | Overcast | 30° /20° | 11.4 mm | 7 | |
| Sept. 5 |  Patchy rain possible | 32° /18° | 14.9 mm | 7 | |
| Sept. 6 |  Partly cloudy | 30° /18° | 8.1 mm | 7 | |
| Sept. 7 | Sunny | 27° /12° | 0 mm | 7 | |
| Sept. 8 | Sunny | 28° /10° | 0 mm | 7 | |
| Sept. 9 | Sunny | 30° /14° | 0.4 mm | 7 | |
| Sept. 10 | Sunny | 29° /17° | 27.1 mm | 5 | |
| Sept. 11 | Partly cloudy | 32° /18° | 8.6 mm | 6 | |
| Sept. 12 | Sunny | 31° /18° | 5.1 mm | 8 | |
| Sept. 13 | Light rain shower | 30° /19° | 1.3 mm | 6 | |
| Sept. 14 | Light rain shower | 29° /19° | 2.4 mm | 7 | |
| Sept. 15 | Patchy rain possible | 32° /20° | 34.3 mm | 7 | |
| Sept. 16 | Sunny | 32° /21° | 0 mm | 8 | |
| Sept. 17 | Partly cloudy | 32° /20° | 0 mm | 7 | |
| Sept. 18 | Sunny | 32° /19° | 0.8 mm | 7 | |
| Sept. 19 | Sunny | 33° /20° | 2 mm | 7 | |
| Sept. 20 | Overcast | 36° /25° | 0 mm | 6.6 | |
| Sept. 21 | Patchy rain possible | 29° /20° | 2.5 mm | 5 | |
| Sept. 22 |  Cloudy | 25° /16° | 1.1 mm | 4 | |
| Sept. 23 | Sunny | 26° /14° | 0 mm | 6.6 | |
| Sept. 24 | Sunny | 27° /12° | 0 mm | 6.8 | |
| Sept. 25 | Overcast | 26° /14° | 0 mm | 6 | |
| Sept. 26 | Overcast | 22° /13° | 0 mm | 5 | |
| Sept. 27 | Overcast | 27° /15° | 0 mm | 6 | |
| Sept. 28 | Sunny | 28° /13° | 0 mm | 7 | |
| Sept. 29 | Sunny | 31° /16° | 0 mm | 7 | |
| Sept. 30 | Light rain shower | 22° /17° | 10.2 mm | 5 | |
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Important Notice
Our weather forecast for Energy 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 Energy forecast closer to your planned date for the most up-to-date weather information.
Change Month
Energy in September - FAQ
What are the expected maximum and minimum temperatures in Energy during September?
During September, expect a variety of temperatures with highs around 28° and lows near 17°, suitable for diverse activities and preferences.
How much rainfall should be expected in Energy during September?
Significant rainfall exceeding 296.6 mm is expected in Energy during September, occurring over more than 18 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Energy during September?
The average wind speed in Energy during September is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Energy
Explore the daily rainfall trends and prepare for Energys September weather 💧
Typically, Energy has 18 rainy days in September with a total of 296.6 mm of rainfall.
UV exposure in Energy during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Where is Energy?Get accurate weather forecasts for Energy, located at latitude 37.774 and longitude -89.026. Stay updated with localized weather information tailored for Energy.
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