Harman US

Big Rock, TN Weather & Growing Conditions

This Afternoon
72°F
Mostly Sunny
Mostly sunny. High near 72, with temperatures falling to around 64 in the afternoon. West southwest wind around 5 mph.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 72°F Mostly Sunny 5 mph WSW 0%
Tonight 46°F Patchy Fog 0 to 5 mph WSW 0%
Thursday 68°F Patchy Fog then Sunny 0 to 5 mph SW 0%
Thursday Night 45°F Areas Of Fog 0 mph 0%
Friday 62°F Patchy Fog then Mostly Sunny 0 to 5 mph N 0%
Friday Night 37°F Partly Cloudy 0 to 5 mph N 0%
Saturday 56°F Sunny 0 to 5 mph N 0%
Saturday Night 34°F Mostly Clear 0 mph 0%
Sunday 59°F Sunny 0 to 5 mph N 0%
Sunday Night 35°F Mostly Clear 0 mph 0%
Monday 62°F Sunny 0 mph 0%
Monday Night 37°F Mostly Clear 0 mph 1%
Tuesday 65°F Sunny 0 to 5 mph WNW 0%
Tuesday Night 39°F Mostly Clear 0 mph 1%

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
7b

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 (10.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 5, 2026.