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Hourly Forecast
Daylight Hours
07:29
Sunrise
19:41
Sunset
Moon
Waxing Crescent
12:02
Moonrise
21:30
Moonset
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Weather in Chattanooga today, September 15, 2026
Chattanooga sees a largely clear day on September 15, 2026, interrupted by cloudier skies around 11:00. Plan for bright conditions either side of that cloudier interval. Expect a brighter morning, with limited cloud around 22% by 11:00. Conditions start on a settled note.
Temperatures climb from an overnight low near 21°C toward a daytime high of about 36°C. The air stays humid, with relative humidity between 28% and 97% and the peak around 07:00. Airflow remains manageable, reaching about 4.0 km/h around 12:00.
Through the afternoon skies look more workable, with cloud near 8% around 18:00. Later outdoor plans have a clearer window than the morning may have suggested. Visibility holds near 15.8 km, though it can fall to 13.1 km. The sun rises at 07:29 and sets at 19:41, for a total of 12 hours 12 minutes of sunlight today.
Overall, Chattanooga on September 15, 2026 favours outdoor plans under mostly open skies, with a comfortable high near 36°C.
Frequently asked questions about weather in Chattanooga
How warm does it get in Chattanooga?
The warmest month in Chattanooga is July, with average high temperatures of 32°C. The average temperature during this period is around 27°C.
How cold does it get in Chattanooga?
The coldest month in Chattanooga is January, with average low temperatures of 1°C. The average temperature during this period is around 5°C.
What is the wettest time of year in Chattanooga?
The wettest month in Chattanooga is February, with an average of 157mm of precipitation.
What is the driest time of year in Chattanooga?
The driest month in Chattanooga is November, with an average of 73mm of precipitation.
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