Chattanooga, TN Weather & Growing Conditions
Today
97°F
Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 2pm. Sunny. High near 97, with temperatures falling to around 94 in the afternoon. Heat index values as high as 104. North wind 0 to 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 97°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph N | 24% |
| Tonight | 72°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 32% |
| Sunday | 95°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph S | 28% |
| Sunday Night | 71°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 23% |
| Monday | 95°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 mph | 40% |
| Monday Night | 70°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 0 mph | 62% |
| Tuesday | 90°F | Showers And Thunderstorms | 0 to 5 mph S | 82% |
| Tuesday Night | 68°F | Showers And Thunderstorms | 0 to 5 mph SE | 82% |
| Wednesday | 84°F | Rain Showers Likely | 0 to 5 mph S | 65% |
| Wednesday Night | 64°F | Showers And Thunderstorms Likely | 0 to 5 mph SE | 65% |
| Thursday | 83°F | Mostly Sunny then Slight Chance Rain Showers | 0 to 5 mph N | 16% |
| Thursday Night | 62°F | Slight Chance Rain Showers then Partly Cloudy | 0 to 5 mph N | 16% |
| Friday | 82°F | Mostly Sunny | 0 to 5 mph N | 13% |
| Friday Night | 61°F | Partly Cloudy | 5 mph N | 13% |
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 (3.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.