Chattanooga, TN Weather & Growing Conditions
Overnight
62°F
Showers And Thunderstorms
Showers and thunderstorms. Mostly cloudy. Low around 62, with temperatures rising to around 65 overnight. Southeast wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 62°F | Showers And Thunderstorms | 15 mph SE | 86% |
| Wednesday | 68°F | Showers And Thunderstorms | 10 to 15 mph SE | 92% |
| Wednesday Night | 58°F | Chance Rain Showers then Partly Cloudy | 5 mph SW | 43% |
| Thursday | 70°F | Mostly Sunny | 0 to 5 mph W | 0% |
| Thursday Night | 52°F | Mostly Clear | 5 mph NW | 2% |
| Friday | 69°F | Sunny | 0 to 10 mph NW | 1% |
| Friday Night | 47°F | Mostly Clear | 10 mph NW | 0% |
| Saturday | 60°F | Mostly Sunny | 5 to 10 mph N | 0% |
| Saturday Night | 42°F | Partly Cloudy | 5 to 10 mph N | 0% |
| Sunday | 59°F | Mostly Sunny | 5 mph N | 0% |
| Sunday Night | 41°F | Mostly Clear | 5 mph N | 1% |
| Monday | 62°F | Sunny | 0 to 5 mph N | 1% |
| Monday Night | 42°F | Mostly Clear | 0 mph | 1% |
| Tuesday | 65°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
7b
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 (5.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.