Montgomery County (Clarksville)
September
Weather in Montgomery County for September 2025
Your guide to Montgomery County weather in September - trends and predictions
In general, the average temperature in Montgomery County at the beginning of September is 30.6 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 26.1 °F by the end of September.
Montgomery County sees moderate rainfall in September, averaging 8 rainy days.
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22
Dry days
8
Rainy days
0
Snow days
30°/16°
Temperatures
14 km/h
Avg max wind
63 %
Avg humidity
Montgomery County in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  29° | 2  32° | 3  31° | 4  30° | 5  31° | 6  34° | 7 27° |
| 8 27° | 9 29° | 10 31° | 11 32° | 12  26° | 13 25° | 14 25° |
| 15  29° | 16  30° | 17 29° | 18 28° | 19 29° | 20 31° | 21 32° |
| 22 32° | 23 30° | 24 28° | 25 24° | 26  26° | 27  26° | 28 25° |
| 29 26° | 30 28° |
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Temperatures trend during September in Montgomery County
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 | Overcast | 29° /17° | 3 mm | 6 | |
| Sept. 2 | Cloudy | 32° /17° | 0 mm | 8 | |
| Sept. 3 | Fog | 31° /16° | 0 mm | 7 | |
| Sept. 4 | Partly cloudy | 30° /21° | 0 mm | 7 | |
| Sept. 5 | Moderate or heavy rain shower | 31° /20° | 4.1 mm | 7 | |
| Sept. 6 | Patchy light rain with thunder | 34° /19° | 7.2 mm | 8 | |
| Sept. 7 | Partly cloudy | 27° /15° | 1 mm | 7 | |
| Sept. 8 | Cloudy | 27° /11° | 0 mm | 6 | |
| Sept. 9 | Overcast | 29° /13° | 0 mm | 7 | |
| Sept. 10 | Mist | 31° /15° | 0 mm | 7 | |
| Sept. 11 | Cloudy | 32° /17° | 0 mm | 8 | |
| Sept. 12 | Moderate rain | 26° /17° | 15.6 mm | 6 | |
| Sept. 13 | Fog | 25° /16° | 4.7 mm | 6 | |
| Sept. 14 | Overcast | 25° /15° | 4.7 mm | 6 | |
| Sept. 15 | Sunny | 29° /15° | 0 mm | 7 | |
| Sept. 16 | Patchy rain possible | 30° /15° | 0.1 mm | 7 | |
| Sept. 17 | Fog | 29° /13° | 0 mm | 7 | |
| Sept. 18 | Partly cloudy | 28° /14° | 0 mm | 7 | |
| Sept. 19 | Overcast | 29° /16° | 0 mm | 7 | |
| Sept. 20 | Overcast | 31° /16° | 0 mm | 7 | |
| Sept. 21 | Overcast | 32° /19° | 0 mm | 7 | |
| Sept. 22 | Partly cloudy | 32° /20° | 1.7 mm | 8 | |
| Sept. 23 | Sunny | 30° /19° | 3.6 mm | 7 | |
| Sept. 24 | Fog | 28° /16° | 15.8 mm | 7 | |
| Sept. 25 | Patchy rain possible | 24° /16° | 0 mm | 6 | |
| Sept. 26 | Patchy light drizzle | 26° /15° | 4.3 mm | 6 | |
| Sept. 27 | Thundery outbreaks possible | 26° /17° | 112.5 mm | 6 | |
| Sept. 28 | Thundery outbreaks possible | 25° /17° | 28.1 mm | 6 | |
| Sept. 29 | Moderate rain at times | 26° /17° | 2.6 mm | 6 | |
| Sept. 30 | Fog | 28° /17° | 0.6 mm | 6 | |
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Important Notice
Our weather forecast for Montgomery 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 Montgomery County forecast closer to your planned date for the most up-to-date weather information.
Montgomery County in September - FAQ
What are the expected maximum and minimum temperatures in Montgomery County during September?
Expect warm days with temperatures around 30°, cooling to mild conditions of 16° after sunset. Perfect for those who enjoy warm weather.
How much rainfall should be expected in Montgomery County during September?
In September, Montgomery County can expect light to moderate rainfall, totaling 41.6 mm across approximately 8 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Montgomery County during September?
The average wind speed in Montgomery County during September is 14 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Montgomery County
Explore the daily rainfall trends and prepare for Montgomery Countys September weather 💧
UV exposure in Montgomery County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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