Oak Grove, TN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Oak Grove, a community in Sumner County, Tennessee.
Tonight
72°F
Mostly Clear
Mostly clear, with a low around 72. Heat index values as high as 97. East northeast wind 0 to 5 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Oak Grove
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 72°F | Mostly Clear | 0 to 5 mph ENE | 14% |
| Saturday | 96°F | Sunny | 0 to 5 mph WSW | 11% |
| Saturday Night | 72°F | Mostly Clear | 0 to 5 mph S | 7% |
| Sunday | 97°F | Mostly Sunny | 5 mph SW | 5% |
| Sunday Night | 72°F | Partly Cloudy | 0 to 5 mph S | 5% |
| Monday | 94°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 mph WSW | 22% |
| Monday Night | 67°F | Chance Showers And Thunderstorms | 5 mph ENE | 50% |
| Tuesday | 86°F | Showers And Thunderstorms Likely | 5 to 10 mph N | 55% |
| Tuesday Night | 64°F | Showers And Thunderstorms Likely | 5 to 10 mph N | 55% |
| Wednesday | 81°F | Chance Rain Showers | 5 to 10 mph N | 25% |
| Wednesday Night | 60°F | Slight Chance Rain Showers then Partly Cloudy | 5 mph N | 22% |
| Thursday | 78°F | Mostly Sunny | 5 to 10 mph N | 9% |
| Thursday Night | 59°F | Partly Cloudy | 5 to 10 mph NNE | 9% |
| Friday | 79°F | Mostly Sunny | 5 to 10 mph NNE | 8% |
Forecast source: National Weather Service (api.weather.gov) for Oak Grove (36.572, -86.378). Updated through the day.
Growing snapshot for Oak Grove
Last spring frost
Apr 16
First fall frost
Oct 23
Growing season
189 days
Hardiness zone
7b
More local growing data for Oak Grove: nearby ZIP 37022 weather · frost dates · planting calendar · Tennessee frost dates
Nearby towns & communities
Bethpage
Bransford
Castalian Springs
Cottontown
Gallatin
Graball
Hendersonville
Mitchellville
New Deal
Portland
Shackle Island
Walnut Grove
Westmoreland
Climate data from the nearest NOAA station, Bethpage 1 S, Tn (3.9 mi from Oak Grove). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.