Walnut Grove, TN Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Walnut Grove, a community in Sumner County, Tennessee.

Overnight

63°F

Showers And Thunderstorms

Showers and thunderstorms. Cloudy, with a low around 63. South southeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

7-day forecast for Walnut Grove

When	Temp	Forecast	Wind	Precip
Overnight	63°F	Showers And Thunderstorms	15 to 20 mph SSE	98%
Wednesday	72°F	Showers And Thunderstorms	5 to 20 mph SW	99%
Wednesday Night	48°F	Partly Cloudy	0 to 5 mph W	0%
Thursday	69°F	Mostly Sunny	0 to 5 mph WSW	0%
Thursday Night	45°F	Mostly Clear	0 mph	0%
Friday	65°F	Mostly Sunny	0 to 10 mph NW	0%
Friday Night	40°F	Partly Cloudy	5 to 10 mph NNW	0%
Saturday	57°F	Mostly Sunny	5 to 10 mph N	0%
Saturday Night	35°F	Partly Cloudy	0 to 5 mph N	0%
Sunday	57°F	Mostly Sunny	0 to 10 mph N	1%
Sunday Night	34°F	Mostly Clear	0 to 5 mph N	0%
Monday	61°F	Sunny	0 to 5 mph SSW	0%
Monday Night	36°F	Clear	0 mph	1%
Tuesday	66°F	Sunny	0 to 5 mph WSW	1%

Forecast source: National Weather Service (api.weather.gov) for Walnut Grove (36.489, -86.606). Updated through the day.

Growing snapshot for Walnut Grove

Last spring frost

Apr 7

First fall frost

Oct 30

Growing season

206 days

Hardiness zone

More local growing data for Walnut Grove: nearby ZIP 37048 weather · frost dates · planting calendar · Tennessee frost dates

Nearby towns & communities

Bethpage Bransford Castalian Springs Cottontown Gallatin Graball Hendersonville Mitchellville New Deal Oak Grove Portland Shackle Island Westmoreland

All Tennessee locations ›

Climate data from the nearest NOAA station, White House, Tn (4.1 mi from Walnut Grove). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.