Bloomington
September
Weather in Bloomington for September 2025
Your guide to Bloomington weather in September - trends and predictions
In general, the average temperature in Bloomington at the beginning of September is 26.7 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 22.1 °F by the end of September.
The climate of Bloomington in September is notably wet, with an average of 11 rainy days, and a total of 141.3 mm of precipitation.
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Temperatures
Rain 🌧️
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19
Dry days
11
Rainy days
0
Snow days
26°/16°
Temperatures
14 km/h
Avg max wind
64 %
Avg humidity
Bloomington Weather September
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  29° | 2  25° | 3  24° | 4  29° | 5 31° | 6  28° | |
| 7 21° | 8 22° | 9 26° | 10 29° | 11 30° | 12 30° | 13  26° |
| 14 31° | 15 30° | 16 30° | 17 27° | 18 28° | 19 29° | 20 30° |
| 21 30° | 22 24° | 23 22° | 24 22° | 25 24° | 26 24° | 27 21° |
| 28 20° | 29 21° | 30  23° |
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Temperatures trend during September in Bloomington
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 | Patchy rain possible | 29° /18° | 0.6 mm | 6 | |
| Sept. 2 | Sunny | 25° /14° | 0 mm | 7 | |
| Sept. 3 | Overcast | 24° /12° | 0 mm | 5 | |
| Sept. 4 | Partly cloudy | 29° /16° | 0 mm | 7 | |
| Sept. 5 | Sunny | 31° /17° | 0 mm | 8 | |
| Sept. 6 | Moderate or heavy rain shower | 28° /16° | 2.1 mm | 6 | |
| Sept. 7 | Sunny | 21° /9° | 0 mm | 6 | |
| Sept. 8 | Sunny | 22° /6° | 0 mm | 6 | |
| Sept. 9 | Sunny | 26° /10° | 0 mm | 7 | |
| Sept. 10 | Sunny | 29° /13° | 0 mm | 7 | |
| Sept. 11 | Sunny | 30° /15° | 0 mm | 8 | |
| Sept. 12 | Overcast | 30° /16° | 0 mm | 6 | |
| Sept. 13 | Heavy rain at times | 26° /16° | 1.5 mm | 6 | |
| Sept. 14 | Partly cloudy | 31° /18° | 0 mm | 8 | |
| Sept. 15 | Sunny | 30° /18° | 0 mm | 8 | |
| Sept. 16 | Sunny | 30° /15° | 0 mm | 8 | |
| Sept. 17 | Sunny | 27° /14° | 0 mm | 7 | |
| Sept. 18 | Overcast | 28° /14° | 0 mm | 6 | |
| Sept. 19 | Partly cloudy | 29° /18° | 0 mm | 7 | |
| Sept. 20 | Partly cloudy | 30° /18° | 0.7 mm | 8 | |
| Sept. 21 | Overcast | 30° /19° | 0 mm | 7 | |
| Sept. 22 | Moderate or heavy rain shower | 24° /21° | 17.8 mm | 5 | |
| Sept. 23 | Moderate or heavy rain shower | 22° /18° | 8.4 mm | 5 | |
| Sept. 24 | Moderate or heavy rain shower | 22° /16° | 20.4 mm | 5 | |
| Sept. 25 | Patchy rain possible | 24° /16° | 0.2 mm | 5 | |
| Sept. 26 | Moderate rain at times | 24° /15° | 1.3 mm | 5 | |
| Sept. 27 | Moderate or heavy rain shower | 21° /18° | 52.8 mm | 5 | |
| Sept. 28 | Moderate or heavy rain shower | 20° /17° | 34.5 mm | 5 | |
| Sept. 29 | Moderate rain at times | 21° /17° | 0.9 mm | 5 | |
| Sept. 30 | Fog | 23° /18° | 0 mm | 5 | |
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Important Notice
Our weather forecast for Bloomington 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 Bloomington forecast closer to your planned date for the most up-to-date weather information.
Bloomington in September - FAQ
What are the expected maximum and minimum temperatures in Bloomington during September?
During September, expect a variety of temperatures with highs around 26° and lows near 16°, suitable for diverse activities and preferences.
How much rainfall should be expected in Bloomington during September?
Significant rainfall exceeding 141.3 mm is expected in Bloomington during September, occurring over more than 11 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Bloomington during September?
The average wind speed in Bloomington during September is 14 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Bloomington
Explore the daily rainfall trends and prepare for Bloomingtons September weather 💧
UV exposure in Bloomington during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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