Gallatin, TN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Gallatin, a city in Sumner County, Tennessee.
Today
91°F
Sunny
Sunny, with a high near 91. Heat index values as high as 97. North northeast wind around 5 mph.
7-day forecast for Gallatin
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 91°F | Sunny | 5 mph NNE | 4% |
| Tonight | 70°F | Mostly Clear | 0 to 5 mph N | 5% |
| Wednesday | 91°F | Patchy Fog then Chance Showers And Thunderstorms | 0 to 5 mph WNW | 25% |
| Wednesday Night | 71°F | Partly Cloudy | 0 mph | 7% |
| Thursday | 94°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph SSW | 19% |
| Thursday Night | 73°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 mph SSE | 26% |
| Friday | 93°F | Chance Showers And Thunderstorms | 5 mph SSW | 34% |
| Friday Night | 72°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 34% |
| Saturday | 92°F | Chance Showers And Thunderstorms | 0 to 5 mph SSW | 50% |
| Saturday Night | 72°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 50% |
| Sunday | 93°F | Chance Showers And Thunderstorms | 0 to 5 mph SSW | 32% |
| Sunday Night | 73°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph S | 32% |
| Monday | 94°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph SSW | 20% |
| Monday Night | 74°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SSW | 20% |
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 Aug 4, 2026.