Gallatin, TN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Gallatin, a city in Sumner County, Tennessee.
This Afternoon
98°F
Sunny
Sunny, with a high near 98. Heat index values as high as 104. North northwest wind around 5 mph.
7-day forecast for Gallatin
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 98°F | Sunny | 5 mph NNW | 8% |
| Tonight | 73°F | Mostly Clear | 0 to 5 mph NE | 13% |
| Saturday | 100°F | Sunny | 0 to 5 mph WNW | 12% |
| Saturday Night | 73°F | Mostly Clear | 0 to 5 mph ESE | 8% |
| Sunday | 99°F | Mostly Sunny | 5 mph SW | 5% |
| Sunday Night | 73°F | Partly Cloudy | 0 to 5 mph S | 5% |
| Monday | 97°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 mph SW | 23% |
| Monday Night | 69°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 mph NE | 48% |
| Tuesday | 89°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 5 to 10 mph NNE | 56% |
| Tuesday Night | 65°F | Showers And Thunderstorms Likely | 5 to 10 mph N | 56% |
| Wednesday | 83°F | Chance Rain Showers | 5 to 10 mph N | 25% |
| Wednesday Night | 62°F | Slight Chance Rain Showers then Partly Cloudy | 5 to 10 mph N | 23% |
| Thursday | 81°F | Mostly Sunny | 5 to 10 mph N | 10% |
| Thursday Night | 61°F | Partly Cloudy | 5 to 10 mph NNE | 9% |
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 Sep 19, 2026.