Harman US

Big Rock, TN Weather & Growing Conditions

Tonight
61°F
Showers And Thunderstorms
Showers and thunderstorms. Cloudy, with a low around 61. South wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

7-day forecast

WhenTempForecastWindPrecip
Tonight 61°F Showers And Thunderstorms 5 to 10 mph S 100%
Wednesday 72°F Chance Rain Showers then Partly Sunny 5 to 10 mph SW 36%
Wednesday Night 47°F Partly Cloudy then Patchy Fog 0 to 5 mph WSW 0%
Thursday 71°F Patchy Fog then Sunny 0 to 5 mph SW 0%
Thursday Night 47°F Patchy Fog 0 mph 0%
Friday 66°F Patchy Fog then Mostly Sunny 0 to 5 mph NNW 4%
Friday Night 42°F Partly Cloudy 5 mph N 2%
Saturday 60°F Mostly Sunny 5 mph N 0%
Saturday Night 37°F Mostly Cloudy 0 mph 1%
Sunday 62°F Sunny 0 to 5 mph NW 7%
Sunday Night 36°F Mostly Clear 0 to 5 mph W 7%
Monday 65°F Sunny 0 to 5 mph W 4%
Monday Night 38°F Mostly Clear 0 mph 0%
Tuesday 69°F Sunny 0 to 5 mph SW 0%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Big Rock, TN

Last spring frost
Apr 4
First fall frost
Oct 31
Growing season
210 days
Hardiness zone
7a

Explore more for Big Rock, TN: full frost dates · planting calendar · Tennessee frost dates

Climate data from the nearest NOAA station, Dover 1 W, Tn (8.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.