National Weather Service Forecast for: Gallatin TN
Issued by: National Weather Service Nashville, TN
Updated: 1:31 pm CDT Jul 28, 2026
 
This
Afternoon
This Afternoon: A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 97. Heat index values as high as 113. Northwest wind around 10 mph, with gusts as high as 20 mph.
Slight Chance
T-storms

 Tonight

Tonight: A slight chance of showers and thunderstorms before 7pm, then a slight chance of showers between 7pm and 10pm. Partly cloudy, with a low around 71. North wind around 5 mph. Chance of precipitation is 20%.
Slight Chance
T-storms then
Partly Cloudy
 Wednesday

Wednesday: Sunny, with a high near 90. Light north northeast wind becoming north 5 to 10 mph in the afternoon.
Sunny

 Wednesday
Night
Wednesday Night: Clear, with a low around 65. Northeast wind around 5 mph.
Clear

 Thursday

Thursday: Sunny, with a high near 88. Northeast wind around 5 mph.
Sunny

 Thursday
Night
Thursday Night: Mostly clear, with a low around 64. North northeast wind around 5 mph becoming calm.
Mostly Clear

 Friday

Friday: Mostly sunny, with a high near 89. Calm wind becoming southeast around 5 mph.
Mostly Sunny

 Friday
Night
Friday Night: A 40 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 70. Calm wind.
Mostly Cloudy
then Chance
T-storms
 Saturday

Saturday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 87. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Chance
T-storms then
Showers
Likely
Hi 97 °F Lo 71 °F Hi 90 °F Lo 65 °F Hi 88 °F Lo 64 °F Hi 89 °F Lo 70 °F Hi 87 °F

Heat Advisory
 

This Afternoon
 
 A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 97. Heat index values as high as 113. Northwest wind around 10 mph, with gusts as high as 20 mph.
Tonight
 
 A slight chance of showers and thunderstorms before 7pm, then a slight chance of showers between 7pm and 10pm. Partly cloudy, with a low around 71. North wind around 5 mph. Chance of precipitation is 20%.
Wednesday
 
 Sunny, with a high near 90. Light north northeast wind becoming north 5 to 10 mph in the afternoon.
Wednesday Night
 
 Clear, with a low around 65. Northeast wind around 5 mph.
Thursday
 
 Sunny, with a high near 88. Northeast wind around 5 mph.
Thursday Night
 
 Mostly clear, with a low around 64. North northeast wind around 5 mph becoming calm.
Friday
 
 Mostly sunny, with a high near 89. Calm wind becoming southeast around 5 mph.
Friday Night
 
 A 40 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 70. Calm wind.
Saturday
 
 A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 87. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Saturday Night
 
 Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.
Sunday
 
 Showers and thunderstorms likely. Partly sunny, with a high near 85. Chance of precipitation is 60%.
Sunday Night
 
 A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Monday
 
 A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.

 

Forecast from NOAA-NWS for Gallatin TN.