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Weather in Clarksville for September 2025

Your guide to Clarksville weather in September - trends and predictions

  • In general, the average temperature in Clarksville 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.

  • Clarksville sees moderate rainfall in September, averaging 8 rainy days.

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Average dry days
22
Dry days
Average rainy days
8
Rainy days
Average snowy days
0
Snow days
Average temperatures
30°/16°
Temperatures
Average wind speed
14 km/h
Avg max wind
Average humidity
63 %
Avg humidity

Clarksville in September average weather

Move between months or click on a day
August
October
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Overcast
29°
2
Cloudy
32°
3
Fog
31°
4
Partly cloudy
30°
5
Moderate or heavy rain shower
31°
6
Patchy light rain with thunder
34°
7
Partly cloudy
27°
8
Cloudy
27°
9
Overcast
29°
10
Mist
31°
11
Cloudy
32°
12
Moderate rain
26°
13
Fog
25°
14
Overcast
25°
15
Sunny
29°
16
Patchy rain possible
30°
17
Fog
29°
18
Partly cloudy
28°
19
Overcast
29°
20
Overcast
31°
21
Overcast
32°
22
Partly cloudy
32°
23
Sunny
30°
24
Fog
28°
25
Patchy rain possible
24°
26
Patchy light drizzle
26°
27
Thundery outbreaks possible
26°
28
Thundery outbreaks possible
25°
29
Moderate rain at times
26°
30
Fog
28°
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Temperatures trend during September in Clarksville

See the weather trend as well as the moving average line

September weather day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
Sept. 1 Overcast
Overcast
 29° /17° 3 mm 6
Sept. 2 Cloudy
Cloudy
 32° /17° 0 mm 8
Sept. 3 Fog
Fog
 31° /16° 0 mm 7
Sept. 4 Partly cloudy
Partly cloudy
 30° /21° 0 mm 7
Sept. 5 Moderate or heavy rain shower
Moderate or heavy rain shower
 31° /20° 4.1 mm 7
Sept. 6 Patchy light rain with thunder
Patchy light rain with thunder
 34° /19° 7.2 mm 8
Sept. 7 Partly cloudy
Partly cloudy
 27° /15° 1 mm 7
Sept. 8 Cloudy
Cloudy
 27° /11° 0 mm 6
Sept. 9 Overcast
Overcast
 29° /13° 0 mm 7
Sept. 10 Mist
Mist
 31° /15° 0 mm 7
Sept. 11 Cloudy
Cloudy
 32° /17° 0 mm 8
Sept. 12 Moderate rain
Moderate rain
 26° /17° 15.6 mm 6
Sept. 13 Fog
Fog
 25° /16° 4.7 mm 6
Sept. 14 Overcast
Overcast
 25° /15° 4.7 mm 6
Sept. 15 Sunny
Sunny
 29° /15° 0 mm 7
Sept. 16 Patchy rain possible
Patchy rain possible
 30° /15° 0.1 mm 7
Sept. 17 Fog
Fog
 29° /13° 0 mm 7
Sept. 18 Partly cloudy
Partly cloudy
 28° /14° 0 mm 7
Sept. 19 Overcast
Overcast
 29° /16° 0 mm 7
Sept. 20 Overcast
Overcast
 31° /16° 0 mm 7
Sept. 21 Overcast
Overcast
 32° /19° 0 mm 7
Sept. 22 Partly cloudy
Partly cloudy
 32° /20° 1.7 mm 8
Sept. 23 Sunny
Sunny
 30° /19° 3.6 mm 7
Sept. 24 Fog
Fog
 28° /16° 15.8 mm 7
Sept. 25 Patchy rain possible
Patchy rain possible
 24° /16° 0 mm 6
Sept. 26 Patchy light drizzle
Patchy light drizzle
 26° /15° 4.3 mm 6
Sept. 27 Thundery outbreaks possible
Thundery outbreaks possible
 26° /17° 112.5 mm 6
Sept. 28 Thundery outbreaks possible
Thundery outbreaks possible
 25° /17° 28.1 mm 6
Sept. 29 Moderate rain at times
Moderate rain at times
 26° /17° 2.6 mm 6
Sept. 30 Fog
Fog
 28° /17° 0.6 mm 6
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Important Notice
Our weather forecast for Clarksville 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 Clarksville forecast closer to your planned date for the most up-to-date weather information.

Clarksville in September - FAQ

What are the expected maximum and minimum temperatures in Clarksville 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 Clarksville during September?
In September, Clarksville 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 Clarksville during September?
The average wind speed in Clarksville during September is 14 km/h, suggesting breezy to windy conditions, depending on your activities.

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Location coordinates Where is Clarksville?

Get accurate weather forecasts for Clarksville, located at latitude 36.53 and longitude -87.359. Stay updated with localized weather information tailored for Clarksville.

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