Gallatin Weather Forecast
- 70
- 94
Mostly Sunny
- 69
- 93
Mostly Sunny
- 72
- 98
Hot
- 71
- 96
Mostly Sunny
- 70
- 96
Mostly Sunny
- 68
- 94
Mostly Sunny
Today 13 Sep Sumner
Sunny. Near steady temperature in the lower 90s. Northwest Winds around 5 Mph.
Tonight 13 Sep Sumner
Mostly clear in the Evening, then becoming partly cloudy. Lows around 70. North Winds around 5 Mph.
Gallatin Temperature Statistics
September Temperature
Nashville, Nashville International Airport (23 miles)
Lowest 7 September, 2026
71.7 °FAverage September
85.6 °FHighest 5 September, 2026
101.6 °F
Climate (2021–2026)
Nashville, Nashville International Airport (23 miles)
Average Low 2021–2026
52.9 °FAverage 2021–2026
63.2 °FAverage High 2021–2026
73.8 °F