Chattanooga, TN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Chattanooga, a city in Hamilton County, Tennessee.
Tonight
74°F
Mostly Clear
Mostly clear, with a low around 74. North wind around 0 mph.
7-day forecast for Chattanooga
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 74°F | Mostly Clear | 0 mph | 3% |
| Saturday | 98°F | Sunny then Chance Showers And Thunderstorms | 0 to 5 mph NE | 40% |
| Saturday Night | 72°F | Chance Showers And Thunderstorms | 0 to 5 mph E | 30% |
| Sunday | 95°F | Sunny then Chance Showers And Thunderstorms | 0 to 5 mph S | 34% |
| Sunday Night | 71°F | Chance Showers And Thunderstorms | 0 mph | 34% |
| Monday | 95°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 mph | 47% |
| Monday Night | 71°F | Chance Showers And Thunderstorms | 0 mph | 47% |
| Tuesday | 92°F | Showers And Thunderstorms Likely | 0 to 5 mph S | 70% |
| Tuesday Night | 69°F | Showers And Thunderstorms Likely | 0 to 5 mph SE | 70% |
| Wednesday | 86°F | Chance Rain Showers | 0 to 5 mph SW | 49% |
| Wednesday Night | 65°F | Chance Showers And Thunderstorms | 0 to 5 mph N | 49% |
| Thursday | 84°F | Mostly Sunny | 0 to 5 mph N | 12% |
| Thursday Night | 62°F | Partly Cloudy | 5 mph N | 12% |
| Friday | 83°F | Mostly Sunny | 0 to 10 mph N | 10% |
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 Sep 19, 2026.