Chattanooga, TN Weather & Growing Conditions
Today
89°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 89. Heat index values as high as 96. Northeast wind around 0 mph. Chance of precipitation is 40%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 89°F | Chance Showers And Thunderstorms | 0 mph | 38% |
| Tonight | 70°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 35% |
| Wednesday | 88°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph S | 54% |
| Wednesday Night | 71°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 49% |
| Thursday | 89°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 44% |
| Thursday Night | 71°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 | 33% |
| Friday Night | 71°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 33% |
| Saturday | 89°F | Showers And Thunderstorms Likely | 0 to 5 mph S | 56% |
| Saturday Night | 71°F | Showers And Thunderstorms Likely | 0 mph | 56% |
| Sunday | 89°F | Chance Showers And Thunderstorms | 0 mph | 41% |
| Sunday Night | 72°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 41% |
| Monday | 90°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 39% |
| Monday Night | 73°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph W | 39% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Chattanooga, TN
Last spring frost
Mar 24
First fall frost
Nov 9
Growing season
230 days
Hardiness zone
8a
Explore more for Chattanooga, TN: full frost dates · planting calendar · Tennessee frost dates
Climate data from the nearest NOAA station, Chattanooga Lovell Ap, Tn (10.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.