Chattanooga, TN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Chattanooga, a city in Hamilton County, Tennessee.
Tonight
65°F
Chance Showers And Thunderstorms
A slight chance of rain showers between 10pm and 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Southeast wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Chattanooga
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 65°F | Chance Showers And Thunderstorms | 10 to 15 mph SE | 47% |
| Wednesday | 71°F | Showers And Thunderstorms | 10 to 15 mph S | 100% |
| Wednesday Night | 61°F | Showers And Thunderstorms Likely then Partly Cloudy | 0 to 10 mph SW | 66% |
| Thursday | 75°F | Mostly Sunny | 0 to 5 mph W | 8% |
| Thursday Night | 52°F | Partly Cloudy | 0 mph | 8% |
| Friday | 73°F | Mostly Sunny | 0 to 10 mph NW | 3% |
| Friday Night | 47°F | Mostly Clear | 0 to 5 mph NW | 1% |
| Saturday | 65°F | Mostly Sunny | 5 to 10 mph N | 1% |
| Saturday Night | 42°F | Partly Cloudy | 5 to 10 mph N | 1% |
| Sunday | 64°F | Mostly Sunny | 5 mph N | 6% |
| Sunday Night | 40°F | Mostly Clear | 0 to 5 mph NW | 7% |
| Monday | 65°F | Sunny | 0 to 5 mph NW | 6% |
| Monday Night | 40°F | Mostly Clear | 0 to 5 mph NW | 1% |
| Tuesday | 68°F | Sunny | 0 to 5 mph W | 0% |
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 Nov 4, 2026.