Walnut Grove, TN Weather & Growing Conditions
Overnight
63°F
Showers And Thunderstorms
Showers and thunderstorms. Cloudy, with a low around 63. South wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 63°F | Showers And Thunderstorms | 10 mph S | 82% |
| Wednesday | 73°F | Showers And Thunderstorms then Partly Sunny | 5 to 10 mph WSW | 89% |
| Wednesday Night | 49°F | Areas Of Fog | 0 mph | 0% |
| Thursday | 71°F | Areas Of Fog then Mostly Sunny | 0 mph | 0% |
| Thursday Night | 48°F | Areas Of Fog | 0 mph | 0% |
| Friday | 68°F | Patchy Fog then Sunny | 0 to 10 mph N | 0% |
| Friday Night | 44°F | Mostly Clear | 5 mph N | 0% |
| Saturday | 60°F | Mostly Sunny | 5 to 10 mph N | 0% |
| Saturday Night | 38°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Sunday | 59°F | Mostly Sunny | 0 to 5 mph N | 0% |
| Sunday Night | 37°F | Mostly Clear | 0 mph | 0% |
| Monday | 64°F | Sunny | 0 to 5 mph NNW | 0% |
| Monday Night | 39°F | Mostly Clear | 0 mph | 1% |
| Tuesday | 67°F | Sunny | 0 to 5 mph W | 1% |
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 Nov 4, 2026.