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
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| 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.