Chattanooga, TN Weather & Growing Conditions
Overnight
64°F
Showers And Thunderstorms
Showers and thunderstorms. Mostly cloudy, with a low around 64. Southeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 64°F | Showers And Thunderstorms | 15 mph SE | 78% |
| Wednesday | 72°F | Showers And Thunderstorms | 5 to 15 mph S | 94% |
| Wednesday Night | 61°F | Showers And Thunderstorms then Mostly Cloudy | 0 to 5 mph SW | 91% |
| Thursday | 75°F | Mostly Sunny | 0 to 5 mph W | 1% |
| Thursday Night | 52°F | Partly Cloudy | 0 mph | 2% |
| Friday | 73°F | Sunny | 0 to 10 mph NW | 2% |
| Friday Night | 47°F | Mostly Clear | 5 to 10 mph NW | 1% |
| Saturday | 64°F | Mostly Sunny | 5 to 10 mph N | 0% |
| Saturday Night | 41°F | Partly Cloudy | 5 to 10 mph N | 0% |
| Sunday | 63°F | Mostly Sunny | 5 mph N | 0% |
| Sunday Night | 39°F | Mostly Clear | 0 to 5 mph N | 0% |
| Monday | 66°F | Sunny | 0 to 5 mph N | 1% |
| Monday Night | 40°F | Mostly Clear | 0 mph | 1% |
| Tuesday | 68°F | Sunny | 0 to 5 mph NW | 2% |
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 (1.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.