Powell, TN Weather & Growing Conditions
Today
70°F
Slight Chance Showers And Thunderstorms then Showers And Thunderstorms
A slight chance of showers and thunderstorms before 8am, then showers and thunderstorms. Cloudy. High near 70, with temperatures falling to around 67 in the afternoon. South wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 70°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms | 5 to 15 mph S | 88% |
| Tonight | 60°F | Showers And Thunderstorms | 0 to 5 mph SW | 89% |
| Thursday | 73°F | Partly Sunny | 0 to 5 mph W | 6% |
| Thursday Night | 50°F | Partly Cloudy | 0 mph | 6% |
| Friday | 70°F | Sunny | 0 to 5 mph NW | 6% |
| Friday Night | 45°F | Partly Cloudy | 0 to 5 mph N | 1% |
| Saturday | 60°F | Mostly Sunny | 5 mph N | 0% |
| Saturday Night | 36°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Sunday | 60°F | Mostly Sunny | 0 to 5 mph N | 0% |
| Sunday Night | 35°F | Mostly Clear | 0 to 5 mph N | 1% |
| Monday | 61°F | Sunny | 0 mph | 1% |
| Monday Night | 36°F | Mostly Clear | 0 mph | 1% |
| Tuesday | 66°F | Sunny | 0 mph | 2% |
| Tuesday Night | 38°F | Mostly Clear | 0 mph | 2% |
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 Nov 4, 2026.