Monroe County (Bloomington)
September
Weather in Monroe County, Indiana for September 2025
Your guide to Monroe County weather in September - trends and predictions
Until now, September 2025 in Monroe County is slightly cooler than the historical average by -1.7 °F.
The forecast for the coming days of September 2025 predicts a temperature of 30.6 °F , which is warmer than usual.
In general, the average temperature in Monroe County at the beginning of September is 25.1 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 28.3 °F by the end of September.
Monroe County experiences moderate rainfall in September, with an average of 8 rainy days and a total precipitation of 141.3 mm.
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Temperatures
Rain 🌧️
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22
Dry days
8
Rainy days
0
Snow days
26°/16°
Temperatures
14 km/h
Avg max wind
64 %
Avg humidity
Monroe County Weather September
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Temperatures trend during September in Monroe County
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September weather in Monroe County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Patchy rain possible | 27° /15° | 0.3 mm | 7 | |
| Sept. 2 |  Sunny | 25° /14° | 0 mm | 7 | |
| Sept. 3 |  Overcast | 24° /14° | 0 mm | 5 | |
| Sept. 4 |  Partly cloudy | 26° /15° | 20.4 mm | 6 | |
| Sept. 5 | Sunny | 28° /15° | 6 mm | 7 | |
| Sept. 6 |  Moderate or heavy rain shower | 24° /13° | 6.2 mm | 6 | |
| Sept. 7 | Sunny | 22° /10° | 0 mm | 6 | |
| Sept. 8 | Sunny | 22° /7° | 0 mm | 6 | |
| Sept. 9 | Sunny | 25° /10° | 0 mm | 7 | |
| Sept. 10 | Sunny | 27° /14° | 0 mm | 6 | |
| Sept. 11 | Sunny | 28° /17° | 0 mm | 7 | |
| Sept. 12 | Overcast | 29° /15° | 0 mm | 6 | |
| Sept. 13 |  Heavy rain at times | 26° /16° | 0.8 mm | 6 | |
| Sept. 14 | Partly cloudy | 30° /18° | 6.7 mm | 7 | |
| Sept. 15 | Sunny | 33° /21° | 0 mm | 1.6 | |
| Sept. 16 | Partly cloudy | 29° /19° | 0 mm | 1.5 | |
| Sept. 17 | Sunny | 28° /17° | 0 mm | 1.5 | |
| Sept. 18 | Sunny | 32° /17° | 0 mm | 1.5 | |
| Sept. 19 | Sunny | 33° /17° | 0 mm | 0 | |
| Sept. 20 | Sunny | 30° /17° | 0 mm | 6 | |
| Sept. 21 | Patchy rain possible | 30° /18° | 1.3 mm | 5 | |
| Sept. 22 | Patchy rain possible | 27° /17° | 2.4 mm | 5 | |
| Sept. 23 | Patchy rain possible | 32° /19° | 0.4 mm | 5 | |
| Sept. 24 | Sunny | 30° /17° | 0 mm | 6 | |
| Sept. 25 | Sunny | 31° /16° | 0 mm | 6 | |
| Sept. 26 | Sunny | 31° /17° | 0 mm | 6 | |
| Sept. 27 | Sunny | 31° /18° | 0 mm | 6 | |
| Sept. 28 | Sunny | 31° /17° | 0 mm | 6 | |
| 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 Monroe County 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 Monroe County forecast closer to your planned date for the most up-to-date weather information.
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Monroe County in September - FAQ
What are the expected maximum and minimum temperatures in Monroe County 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 Monroe County during September?
Significant rainfall exceeding 141.3 mm is expected in Monroe County during September, occurring over more than 8 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Monroe County during September?
The average wind speed in Monroe County during September is 14 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Monroe County
Explore the daily rainfall trends and prepare for Monroe Countys September weather 💧
UV exposure in Monroe County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Where is Monroe County?Get accurate weather forecasts for Monroe County, located at latitude 39.165 and longitude -86.526. Stay updated with localized weather information tailored for Monroe County.
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