Chattanooga, TN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Chattanooga, a city in Hamilton County, Tennessee.
Today
89°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 89. Northeast wind around 0 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Chattanooga
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 89°F | Chance Showers And Thunderstorms | 0 mph | 43% |
| Tonight | 71°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 45% |
| Wednesday | 88°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph S | 54% |
| Wednesday Night | 72°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 50% |
| Thursday | 89°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 44% |
| Thursday Night | 72°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph S | 44% |
| Friday | 90°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph S | 36% |
| Friday Night | 72°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 36% |
| Saturday | 90°F | Showers And Thunderstorms Likely | 0 mph | 62% |
| Saturday Night | 72°F | Showers And Thunderstorms Likely | 0 mph | 62% |
| Sunday | 90°F | Chance Showers And Thunderstorms | 0 mph | 44% |
| Sunday Night | 73°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 44% |
| Monday | 90°F | Chance Showers And Thunderstorms | 0 mph | 42% |
| Monday Night | 73°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 42% |
Forecast source: National Weather Service (api.weather.gov) for Chattanooga (35.066, -85.248). Updated through the day.
Growing snapshot for Chattanooga
Last spring frost
Mar 24
First fall frost
Nov 9
Growing season
230 days
Hardiness zone
8a
More local growing data for Chattanooga: nearby ZIP 37406 weather · frost dates · planting calendar · Tennessee frost dates
Nearby towns & communities
Apison
Collegedale
East Ridge
Fairmount
Falling Water
Flat Top Mountain
Graysville
Harrison
Lakesite
Lone Oak
Lookout Mountain
Middle Valley
Mowbray Mountain
Ooltewah
Red Bank
Ridgeside
Sale Creek
Soddy-Daisy
Walden
Climate data from the nearest NOAA station, Chattanooga Lovell Ap, Tn (3.8 mi from Chattanooga). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.