Powell, TN Weather & Growing Conditions
Today
87°F
Mostly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 87. North wind around 0 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 87°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 mph | 34% |
| Tonight | 69°F | Chance Showers And Thunderstorms then Mostly Cloudy | 0 mph | 35% |
| Wednesday | 86°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 mph | 53% |
| Wednesday Night | 70°F | Chance Showers And Thunderstorms | 0 mph | 51% |
| Thursday | 86°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 52% |
| Thursday Night | 70°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SW | 52% |
| Friday | 87°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph SW | 38% |
| Friday Night | 69°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 38% |
| Saturday | 87°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 52% |
| Saturday Night | 70°F | Chance Showers And Thunderstorms | 0 mph | 52% |
| Sunday | 87°F | Chance Showers And Thunderstorms | 0 mph | 38% |
| Sunday Night | 71°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 38% |
| Monday | 87°F | Chance Showers And Thunderstorms | 0 mph | 40% |
| Monday Night | 72°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 40% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Powell, TN
Last spring frost
Mar 31
First fall frost
Nov 4
Growing season
218 days
Hardiness zone
7b
Explore more for Powell, TN: full frost dates · planting calendar · Tennessee frost dates
Climate data from the nearest NOAA station, Oak Ridge Asos, Tn (10.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.