Greenbrier, TN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Greenbrier, a town in Robertson County, Tennessee.
Tonight
63°F
Showers And Thunderstorms
Showers and thunderstorms after 9pm. Mostly 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 1 and 2 inches possible.
7-day forecast for Greenbrier
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 63°F | Showers And Thunderstorms | 15 to 20 mph SSE | 97% |
| Wednesday | 73°F | Showers And Thunderstorms | 5 to 15 mph SW | 93% |
| Wednesday Night | 48°F | Partly Cloudy | 0 to 5 mph WSW | 0% |
| Thursday | 70°F | Patchy Fog then Mostly Sunny | 0 to 5 mph SW | 0% |
| Thursday Night | 46°F | Partly Cloudy then Patchy Fog | 0 mph | 0% |
| Friday | 66°F | Patchy Fog then Mostly Sunny | 0 to 10 mph NW | 1% |
| Friday Night | 41°F | Partly Cloudy | 5 to 10 mph NNW | 1% |
| Saturday | 59°F | Mostly Sunny | 5 to 10 mph NNW | 0% |
| Saturday Night | 36°F | Partly Cloudy | 0 to 5 mph NNW | 1% |
| Sunday | 61°F | Mostly Sunny | 0 to 10 mph NW | 7% |
| Sunday Night | 34°F | Mostly Clear | 5 mph W | 8% |
| Monday | 63°F | Sunny | 5 mph W | 5% |
| Monday Night | 36°F | Mostly Clear | 5 mph WSW | 1% |
| Tuesday | 67°F | Sunny | 5 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Greenbrier (36.422, -86.790). Updated through the day.
Growing snapshot for Greenbrier
Last spring frost
Apr 9
First fall frost
Oct 28
Growing season
201 days
Hardiness zone
7a
More local growing data for Greenbrier: nearby ZIP 37073 weather · frost dates · planting calendar · Tennessee frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Springfield Exp Stn, Tn (3 mi from Greenbrier). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.