Clarksburg, TN Weather & Growing Conditions
Today
99°F
Sunny
Sunny, with a high near 99. Heat index values as high as 102. West northwest wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 99°F | Sunny | 0 to 5 mph WNW | 2% |
| Tonight | 72°F | Mostly Clear | 0 mph | 2% |
| Sunday | 98°F | Mostly Sunny | 0 to 5 mph SW | 1% |
| Sunday Night | 72°F | Partly Cloudy | 0 to 5 mph S | 2% |
| Monday | 95°F | Mostly Sunny | 0 to 5 mph W | 14% |
| Monday Night | 67°F | Chance Showers And Thunderstorms | 0 to 5 mph NNE | 40% |
| Tuesday | 86°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 5 to 10 mph N | 40% |
| Tuesday Night | 62°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 to 15 mph N | 17% |
| Wednesday | 82°F | Mostly Sunny | 5 to 10 mph N | 13% |
| Wednesday Night | 60°F | Partly Cloudy | 5 to 10 mph NNE | 7% |
| Thursday | 81°F | Mostly Sunny | 5 to 10 mph NNE | 4% |
| Thursday Night | 59°F | Partly Cloudy | 0 to 10 mph NNE | 4% |
| Friday | 81°F | Mostly Sunny | 5 to 10 mph NNE | 4% |
| Friday Night | 59°F | Partly Cloudy | 5 to 10 mph NNE | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Clarksburg, TN
Last spring frost
Apr 2
First fall frost
Oct 31
Growing season
211 days
Hardiness zone
7b
Explore more for Clarksburg, TN: full frost dates · planting calendar · Tennessee frost dates
Climate data from the nearest NOAA station, Huntingdon Wtp, Tn (11.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.