Knoxville, TN Weather & Growing Conditions
Tonight
60°F
Mostly Cloudy
Mostly cloudy, with a low around 60. East wind 0 to 5 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 60°F | Mostly Cloudy | 0 to 5 mph E | 14% |
| Wednesday | 73°F | Showers And Thunderstorms | 0 to 5 mph S | 86% |
| Wednesday Night | 62°F | Showers And Thunderstorms | 0 to 5 mph SW | 94% |
| Thursday | 74°F | Slight Chance Rain Showers | 0 to 5 mph W | 19% |
| Thursday Night | 53°F | Mostly Cloudy | 0 mph | 11% |
| Friday | 72°F | Mostly Sunny | 0 to 5 mph NW | 11% |
| Friday Night | 47°F | Partly Cloudy | 0 to 5 mph NW | 5% |
| Saturday | 65°F | Mostly Sunny | 0 to 5 mph N | 2% |
| Saturday Night | 40°F | Mostly Cloudy | 0 to 5 mph N | 2% |
| Sunday | 64°F | Partly Sunny | 0 to 5 mph NW | 5% |
| Sunday Night | 37°F | Partly Cloudy | 0 to 5 mph W | 11% |
| Monday | 64°F | Mostly Sunny | 0 to 5 mph W | 11% |
| Monday Night | 37°F | Mostly Clear | 0 to 5 mph W | 7% |
| Tuesday | 67°F | Mostly Sunny | 0 to 5 mph SW | 1% |
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 (12 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.