Harman US

Chattanooga, TN Weather & Growing Conditions

Tonight
73°F
Mostly Clear
Mostly clear, with a low around 73. West wind around 0 mph.

7-day forecast

WhenTempForecastWindPrecip
Tonight 73°F Mostly Clear 0 mph 3%
Saturday 99°F Sunny then Chance Showers And Thunderstorms 0 to 5 mph N 42%
Saturday Night 72°F Chance Showers And Thunderstorms 0 to 5 mph SE 31%
Sunday 96°F Sunny then Chance Showers And Thunderstorms 0 to 5 mph S 28%
Sunday Night 71°F Chance Showers And Thunderstorms 0 mph 28%
Monday 96°F Mostly Sunny then Chance Showers And Thunderstorms 0 mph 46%
Monday Night 70°F Chance Showers And Thunderstorms 0 mph 47%
Tuesday 92°F Showers And Thunderstorms Likely 0 to 5 mph S 70%
Tuesday Night 68°F Showers And Thunderstorms Likely 0 to 5 mph SE 70%
Wednesday 87°F Chance Rain Showers 0 to 5 mph SW 46%
Wednesday Night 64°F Chance Showers And Thunderstorms 5 mph N 46%
Thursday 85°F Mostly Sunny 0 to 5 mph N 12%
Thursday Night 62°F Partly Cloudy 5 mph N 12%
Friday 84°F Mostly Sunny 5 mph N 10%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Chattanooga, TN

Last spring frost
Mar 31
First fall frost
Nov 6
Growing season
219 days
Hardiness zone
8a

Explore more for Chattanooga, TN: full frost dates · planting calendar · Tennessee frost dates

Climate data from the nearest NOAA station, Lookout Mtn-Point Park, Tn (0.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.