Knoxville, TN Weather & Growing Conditions
Overnight
69°F
Patchy Fog
Patchy fog after 5am. Mostly cloudy, with a low around 69. Northeast wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 69°F | Patchy Fog | 0 mph | 2% |
| Saturday | 93°F | Patchy Fog then Slight Chance Showers And Thunderstorms | 0 mph | 21% |
| Saturday Night | 69°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 0 mph | 18% |
| Sunday | 91°F | Mostly Sunny | 0 to 5 mph W | 13% |
| Sunday Night | 68°F | Slight Chance Showers And Thunderstorms | 0 mph | 24% |
| Monday | 91°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 0 mph | 39% |
| Monday Night | 67°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 0 mph | 64% |
| Tuesday | 85°F | Showers And Thunderstorms | 0 mph | 84% |
| Tuesday Night | 65°F | Showers And Thunderstorms | 0 mph | 84% |
| Wednesday | 80°F | Showers And Thunderstorms | 0 mph | 77% |
| Wednesday Night | 62°F | Showers And Thunderstorms | 0 mph | 77% |
| Thursday | 78°F | Chance Rain Showers | 0 to 5 mph NW | 39% |
| Thursday Night | 59°F | Slight Chance Rain Showers then Partly Cloudy | 0 to 5 mph N | 24% |
| Friday | 78°F | Mostly Sunny then Slight Chance Rain Showers | 0 to 5 mph N | 15% |
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 (11.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.