Karns, TN Weather & Growing Conditions
Overnight
60°F
Cloudy
Cloudy, with a low around 60. East wind around 5 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 60°F | Cloudy | 5 mph E | 12% |
| Wednesday | 71°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms | 5 to 15 mph S | 93% |
| Wednesday Night | 61°F | Showers And Thunderstorms | 0 to 5 mph SW | 89% |
| Thursday | 73°F | Partly Sunny | 0 to 5 mph W | 5% |
| Thursday Night | 49°F | Partly Cloudy | 0 mph | 5% |
| Friday | 71°F | Sunny | 0 to 5 mph N | 5% |
| Friday Night | 44°F | Partly Cloudy | 0 to 5 mph N | 1% |
| Saturday | 61°F | Mostly Sunny | 5 mph N | 0% |
| Saturday Night | 37°F | Partly Cloudy | 5 mph N | 0% |
| Sunday | 60°F | Mostly Sunny | 0 to 5 mph NE | 0% |
| Sunday Night | 35°F | Partly Cloudy | 0 to 5 mph N | 1% |
| Monday | 62°F | Sunny | 0 mph | 1% |
| Monday Night | 36°F | Mostly Clear | 0 mph | 1% |
| Tuesday | 66°F | Sunny | 0 mph | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Karns, TN
Last spring frost
Mar 31
First fall frost
Nov 4
Growing season
218 days
Hardiness zone
7b
Explore more for Karns, TN: full frost dates · planting calendar · Tennessee frost dates
Climate data from the nearest NOAA station, Oak Ridge Asos, Tn (7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.