Weather in Montgomery County, Ohio for September 2025
Meteorological - Air Quality Alert - See hour by hour.
Until now, September 2025 in Montgomery County is slightly cooler than the historical average by -1.8 °F.
The forecast for the next days in Montgomery County predicts temperatures to be around 28 °F, close to the historical average.
In general, the average temperature in Montgomery County at the beginning of September is 25.9 °F. As the month progressed, temperatures tended to slightly increase, reaching an average of 26 °F by the end of September.
Montgomery County experiences moderate rainfall in September, with an average of 7 rainy days and a total precipitation of 90.7 mm.
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Montgomery County Weather September
Temperatures trend during September in Montgomery County
September weather in Montgomery County day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Mist | 29° /14° | 0 mm | 7 | |
| Sept. 2 |  Sunny | 26° /13° | 0 mm | 7 | |
| Sept. 3 |  Overcast | 26° /12° | 0 mm | 6 | |
| Sept. 4 |  Partly cloudy | 26° /14° | 13.4 mm | 7 | |
| Sept. 5 | Sunny | 28° /14° | 6.2 mm | 7 | |
| Sept. 6 |  Patchy light rain | 25° /13° | 16.6 mm | 6 | |
| Sept. 7 | Sunny | 21° /10° | 0 mm | 6 | |
| Sept. 8 | Sunny | 22° /7° | 0 mm | 6 | |
| Sept. 9 | Sunny | 27° /10° | 0 mm | 7 | |
| Sept. 10 | Sunny | 27° /12° | 0 mm | 7 | |
| Sept. 11 | Sunny | 29° /16° | 0 mm | 7 | |
| Sept. 12 | Overcast | 29° /14° | 0 mm | 7 | |
| Sept. 13 | Overcast | 28° /15° | 0 mm | 6 | |
| Sept. 14 | Partly cloudy | 32° /19° | 0 mm | 8 | |
| Sept. 15 | Sunny | 31° /17° | 0 mm | 8 | |
| Sept. 16 | Sunny | 28° /16° | 0 mm | 7 | |
| Sept. 17 | Sunny | 26° /10° | 0 mm | 7 | |
| Sept. 18 | Partly cloudy | 32° /20° | 0 mm | 1.5 | |
| Sept. 19 | Sunny | 30° /18° | 0 mm | 1.5 | |
| Sept. 20 |  Cloudy | 29° /18° | 0.1 mm | 1.1 | |
| Sept. 21 |  Patchy rain possible | 32° /18° | 0.7 mm | 1.2 | |
| Sept. 22 | Patchy rain possible | 31° /18° | 2.8 mm | 0 | |
| Sept. 23 | Sunny | 31° /19° | 0.1 mm | 6 | |
| Sept. 24 | Patchy rain possible | 26° /19° | 2.7 mm | 5 | |
| Sept. 25 | Fog | 29° /17° | 0.1 mm | 5 | |
| Sept. 26 | Patchy rain possible | 25° /17° | 2.8 mm | 4 | |
| Sept. 27 | Partly cloudy | 24° /14° | 0.1 mm | 5 | |
| Sept. 28 | Partly cloudy | 24° /15° | 0 mm | 5 | |
| Sept. 29 | Sunny | 26° /12° | 0 mm | 5 | |
| Sept. 30 | Sunny | 28° /14° | 0 mm | 6 | |
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Montgomery County in September - FAQ
September rainfall patterns in Montgomery County
UV exposure in Montgomery County during September
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Where is Montgomery County?Get accurate weather forecasts for Montgomery County, located at latitude 39.759 and longitude -84.192. Stay updated with localized weather information tailored for Montgomery County.