Knoxville, TN Weather & Growing Conditions
This Afternoon
72°F
Showers And Thunderstorms
Showers and thunderstorms. Cloudy, with a high near 72. South wind around 5 mph, with gusts as high as 20 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 |
|---|---|---|---|---|
| This Afternoon | 72°F | Showers And Thunderstorms | 5 mph S | 90% |
| Tonight | 61°F | Showers And Thunderstorms | 5 mph SW | 100% |
| Thursday | 72°F | Partly Sunny | 0 to 5 mph W | 2% |
| Thursday Night | 49°F | Partly Cloudy | 0 mph | 0% |
| Friday | 69°F | Sunny | 0 to 5 mph N | 1% |
| Friday Night | 44°F | Partly Cloudy | 5 mph N | 0% |
| Saturday | 59°F | Mostly Sunny | 5 to 10 mph N | 0% |
| Saturday Night | 36°F | Mostly Clear | 5 mph NE | 0% |
| Sunday | 61°F | Mostly Sunny | 0 to 5 mph NE | 0% |
| Sunday Night | 35°F | Mostly Clear | 0 mph | 0% |
| Monday | 64°F | Sunny | 0 mph | 0% |
| Monday Night | 37°F | Mostly Clear | 0 mph | 3% |
| Tuesday | 65°F | Mostly Sunny | 0 mph | 3% |
| Tuesday Night | 40°F | Partly Cloudy | 0 mph | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Knoxville, TN
Last spring frost
Apr 1
First fall frost
Nov 2
Growing season
215 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 Mcghee Tyson Ap, Tn (7.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 5, 2026.