Hamilton County (Chattanooga)
September
Weather in Hamilton County, Tennessee for September 2025
Your guide to Hamilton County weather in September - trends and predictions
Until now, September 2025 in Hamilton County is slightly cooler than the historical average by -1.6 °F.
The forecast for the upcoming days in Hamilton County predicts a temperature of 29.6 °F, which is slightly above the historical average.
In general, the average temperature in Hamilton County at the beginning of September is 27.7 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 26.9 °F by the end of September.
Hamilton County experiences moderate rainfall in September, with an average of 10 rainy days and a total precipitation of 251 mm.
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Temperatures
Rain 🌧️
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20
Dry days
10
Rainy days
0
Snow days
27°/18°
Temperatures
11 km/h
Avg max wind
68 %
Avg humidity
Hamilton County Weather September
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Temperatures trend during September in Hamilton County
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September weather in Hamilton County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Overcast | 26° /19° | 1.6 mm | 6 | |
| Sept. 2 | Overcast | 28° /20° | 0 mm | 6 | |
| Sept. 3 |  Sunny | 28° /18° | 6.7 mm | 7 | |
| Sept. 4 |  Partly cloudy | 30° /19° | 2.8 mm | 7 | |
| Sept. 5 | Overcast | 29° /20° | 1.7 mm | 7 | |
| Sept. 6 |  Mist | 27° /18° | 1.1 mm | 6 | |
| Sept. 7 |  Thundery outbreaks possible | 26° /17° | 0 mm | 6 | |
| Sept. 8 | Overcast | 25° /15° | 0 mm | 5 | |
| Sept. 9 | Thundery outbreaks possible | 27° /17° | 0.1 mm | 6 | |
| Sept. 10 | Mist | 28° /16° | 0.7 mm | 7 | |
| Sept. 11 | Fog | 29° /17° | 0 mm | 6 | |
| Sept. 12 |  Moderate rain at times | 26° /18° | 6.9 mm | 6 | |
| Sept. 13 | Overcast | 27° /18° | 5.6 mm | 6 | |
| Sept. 14 | Partly cloudy | 24° /17° | 8.2 mm | 6 | |
| Sept. 15 | Mist | 32° /17° | 0 mm | 1.6 | |
| Sept. 16 |  Moderate rain | 30° /17° | 10 mm | 0.9 | |
| Sept. 17 | Mist | 30° /18° | 0 mm | 1.7 | |
| Sept. 18 |  Cloudy | 32° /19° | 0 mm | 1.7 | |
| Sept. 19 | Sunny | 33° /17° | 0 mm | 0 | |
| Sept. 20 | Sunny | 33° /18° | 0 mm | 6 | |
| Sept. 21 | Sunny | 30° /17° | 0 mm | 6 | |
| Sept. 22 | Sunny | 30° /16° | 0 mm | 6 | |
| Sept. 23 |  Patchy rain possible | 29° /17° | 0.9 mm | 5 | |
| Sept. 24 | Partly cloudy | 28° /15° | 0.1 mm | 6 | |
| Sept. 25 | Sunny | 27° /13° | 0 mm | 5 | |
| Sept. 26 | Sunny | 27° /12° | 0 mm | 5 | |
| Sept. 27 | Sunny | 26° /12° | 0 mm | 5 | |
| Sept. 28 | Sunny | 28° /12° | 0 mm | 5 | |
| Sept. 29 | Mist | 25° /17° | 0 mm | 6 | |
| Sept. 30 | Mist | 27° /17° | 0 mm | 6 | |
| Next | |||||
Important Notice
Our weather forecast for Hamilton 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 Hamilton County forecast closer to your planned date for the most up-to-date weather information.
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Hamilton County in September - FAQ
What are the expected maximum and minimum temperatures in Hamilton County during September?
During September, expect a variety of temperatures with highs around 27° and lows near 18°, suitable for diverse activities and preferences.
How much rainfall should be expected in Hamilton County during September?
Significant rainfall exceeding 251 mm is expected in Hamilton County during September, occurring over more than 10 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Hamilton County during September?
The average wind speed in Hamilton County during September is 11 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Hamilton County
Explore the daily rainfall trends and prepare for Hamilton Countys September weather 💧
UV exposure in Hamilton County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Where is Hamilton County?Get accurate weather forecasts for Hamilton County, located at latitude 35.046 and longitude -85.31. Stay updated with localized weather information tailored for Hamilton County.
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