Knoxville, TN Weather & Growing Conditions
Today
72°F
Showers And Thunderstorms
A chance of rain showers before 10am, then showers and thunderstorms. Cloudy. High near 72, with temperatures falling to around 68 in the afternoon. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 72°F | Showers And Thunderstorms | 5 to 10 mph S | 84% |
| Tonight | 62°F | Showers And Thunderstorms | 0 to 5 mph SW | 85% |
| Thursday | 73°F | Partly Sunny | 0 to 5 mph W | 11% |
| Thursday Night | 52°F | Partly Cloudy | 0 mph | 7% |
| Friday | 71°F | Sunny | 0 to 5 mph NW | 7% |
| Friday Night | 46°F | Partly Cloudy | 0 to 5 mph N | 1% |
| Saturday | 61°F | Mostly Sunny | 5 mph N | 0% |
| Saturday Night | 38°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Sunday | 60°F | Mostly Sunny | 0 to 5 mph N | 0% |
| Sunday Night | 37°F | Partly Cloudy | 0 to 5 mph N | 1% |
| Monday | 62°F | Sunny | 0 mph | 1% |
| Monday Night | 37°F | Mostly Clear | 0 mph | 1% |
| Tuesday | 66°F | Sunny | 0 to 5 mph W | 2% |
| Tuesday Night | 40°F | Mostly Clear | 0 mph | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Knoxville, TN
Last spring frost
Apr 11
First fall frost
Oct 28
Growing season
198 days
Hardiness zone
7b
Explore more for Knoxville, TN: full frost dates · planting calendar · Tennessee frost dates
Climate data from the nearest NOAA station, Knoxville Exp Stn, Tn (7.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.