Gallatin, TN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Gallatin, a city in Sumner County, Tennessee.
Overnight
63°F
Showers And Thunderstorms
Showers and thunderstorms. Cloudy, with a low around 63. South southeast wind around 15 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 Gallatin
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 63°F | Showers And Thunderstorms | 15 mph SSE | 96% |
| Wednesday | 73°F | Showers And Thunderstorms | 5 to 15 mph SW | 99% |
| Wednesday Night | 48°F | Partly Cloudy then Patchy Fog | 0 to 5 mph W | 1% |
| Thursday | 71°F | Areas Of Fog then Mostly Sunny | 0 to 5 mph WSW | 0% |
| Thursday Night | 44°F | Mostly Clear then Areas Of Fog | 0 mph | 0% |
| Friday | 68°F | Areas Of Fog then Mostly Sunny | 0 to 10 mph NNW | 0% |
| Friday Night | 40°F | Partly Cloudy | 5 to 10 mph NNW | 0% |
| Saturday | 60°F | Mostly Sunny | 5 to 10 mph N | 0% |
| Saturday Night | 34°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Sunday | 60°F | Mostly Sunny | 0 to 10 mph N | 1% |
| Sunday Night | 33°F | Mostly Clear | 0 to 5 mph N | 0% |
| Monday | 63°F | Sunny | 0 to 5 mph SSW | 0% |
| Monday Night | 34°F | Clear | 0 mph | 1% |
| Tuesday | 68°F | Sunny | 0 to 5 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov) for Gallatin (36.382, -86.467). Updated through the day.
Growing snapshot for Gallatin
Last spring frost
Apr 16
First fall frost
Oct 23
Growing season
189 days
Hardiness zone
7b
More local growing data for Gallatin: nearby ZIP 37066 weather · frost dates · planting calendar · Tennessee frost dates
Nearby towns & communities
Bethpage
Bransford
Castalian Springs
Cottontown
Graball
Hendersonville
Mitchellville
New Deal
Oak Grove
Portland
Shackle Island
Walnut Grove
Westmoreland
Climate data from the nearest NOAA station, Bethpage 1 S, Tn (8.4 mi from Gallatin). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.