Harman US

Chattanooga, TN Weather & Growing Conditions

Overnight
73°F
Mostly Clear
Mostly clear, with a low around 73. North wind around 0 mph.

7-day forecast

WhenTempForecastWindPrecip
Overnight 73°F Mostly Clear 0 mph 0%
Saturday 98°F Sunny then Chance Showers And Thunderstorms 0 mph 26%
Saturday Night 72°F Chance Showers And Thunderstorms then Partly Cloudy 0 to 5 mph S 32%
Sunday 96°F Mostly Sunny then Slight Chance Showers And Thunderstorms 0 to 5 mph S 28%
Sunday Night 71°F Slight Chance Showers And Thunderstorms then Partly Cloudy 0 mph 21%
Monday 96°F Mostly Sunny then Chance Showers And Thunderstorms 0 mph 41%
Monday Night 69°F Chance Showers And Thunderstorms then Showers And Thunderstorms Likely 0 mph 62%
Tuesday 91°F Showers And Thunderstorms 0 to 5 mph S 82%
Tuesday Night 67°F Showers And Thunderstorms 0 to 5 mph SE 82%
Wednesday 84°F Rain Showers Likely 0 to 5 mph SE 63%
Wednesday Night 64°F Showers And Thunderstorms Likely 5 mph E 63%
Thursday 84°F Mostly Sunny then Slight Chance Rain Showers 0 to 5 mph E 15%
Thursday Night 62°F Slight Chance Rain Showers then Partly Cloudy 0 to 5 mph N 15%
Friday 83°F Mostly Sunny 0 to 5 mph N 13%

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.