Walnut Grove, TN Weather & Growing Conditions
Today
87°F
Mostly Sunny
Mostly sunny, with a high near 87. North wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 87°F | Mostly Sunny | 0 to 5 mph N | 4% |
| Tonight | 69°F | Patchy Fog | 0 mph | 5% |
| Wednesday | 89°F | Patchy Fog then Slight Chance Showers And Thunderstorms | 0 mph | 15% |
| Wednesday Night | 70°F | Mostly Clear then Patchy Fog | 0 mph | 3% |
| Thursday | 92°F | Sunny | 0 to 5 mph SSW | 5% |
| Thursday Night | 72°F | Partly Cloudy | 0 mph | 10% |
| Friday | 91°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph S | 21% |
| Friday Night | 72°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 21% |
| Saturday | 90°F | Chance Showers And Thunderstorms | 0 mph | 40% |
| Saturday Night | 72°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 40% |
| Sunday | 90°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 mph | 29% |
| Sunday Night | 72°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 29% |
| Monday | 90°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph SSW | 25% |
| Monday Night | 73°F | Chance Showers And Thunderstorms | 0 mph | 25% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Walnut Grove, TN
Last spring frost
Apr 14
First fall frost
Oct 24
Growing season
192 days
Hardiness zone
7b
Explore more for Walnut Grove, TN: full frost dates · planting calendar · Tennessee frost dates
Climate data from the nearest NOAA station, Waynesboro, Tn (18.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.