National Weather Service Forecast for: Gallatin TN
Issued by: National Weather Service Nashville, TN
Updated: 1:31 pm CDT Jul 16, 2026
 
This
Afternoon
This Afternoon: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 91. Heat index values as high as 101. West southwest wind around 5 mph.
Chance
T-storms

 Tonight

Tonight: A 30 percent chance of showers and thunderstorms before 7pm. Patchy fog before 3am, then patchy fog after 4am. Otherwise, partly cloudy, with a low around 74. Calm wind.
Chance
T-storms then
Patchy Fog

 Friday

Friday: Showers and thunderstorms likely, mainly between 3pm and 5pm. Patchy fog before 7am. Otherwise, mostly sunny, with a high near 90. Heat index values as high as 100. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Slight Chance
T-storms and
Patchy Fog
then T-storms
Likely
 Friday
Night
Friday Night: A chance of showers and thunderstorms before 2am, then a chance of showers after 5am. Patchy fog after 4am. Otherwise, partly cloudy, with a low around 73. West wind around 5 mph becoming calm. Chance of precipitation is 30%.
Chance
T-storms then
Chance
Showers and
Patchy Fog
 Saturday

Saturday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Patchy fog before 7am. Otherwise, mostly sunny, with a high near 91. Light southwest wind becoming west 5 to 10 mph in the morning. Chance of precipitation is 70%.
Chance
Showers and
Patchy Fog
then Showers
Likely
 Saturday
Night
Saturday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74. West wind around 5 mph becoming calm in the evening.
Chance
T-storms

 Sunday

Sunday: A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. Calm wind becoming northwest around 5 mph in the afternoon.
Chance
T-storms

 Sunday
Night
Sunday Night: Mostly clear, with a low around 71. North northwest wind around 5 mph becoming calm.
Mostly Clear


 Monday

Monday: Mostly sunny, with a high near 92. Calm wind becoming west southwest around 5 mph.
Mostly Sunny
Hi 91 °F Lo 74 °F Hi 90 °F Lo 73 °F Hi 91 °F Lo 74 °F Hi 90 °F Lo 71 °F Hi 92 °F

 

This Afternoon
 
 A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 91. Heat index values as high as 101. West southwest wind around 5 mph.
Tonight
 
 A 30 percent chance of showers and thunderstorms before 7pm. Patchy fog before 3am, then patchy fog after 4am. Otherwise, partly cloudy, with a low around 74. Calm wind.
Friday
 
 Showers and thunderstorms likely, mainly between 3pm and 5pm. Patchy fog before 7am. Otherwise, mostly sunny, with a high near 90. Heat index values as high as 100. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
 
 A chance of showers and thunderstorms before 2am, then a chance of showers after 5am. Patchy fog after 4am. Otherwise, partly cloudy, with a low around 73. West wind around 5 mph becoming calm. Chance of precipitation is 30%.
Saturday
 
 A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Patchy fog before 7am. Otherwise, mostly sunny, with a high near 91. Light southwest wind becoming west 5 to 10 mph in the morning. Chance of precipitation is 70%.
Saturday Night
 
 A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74. West wind around 5 mph becoming calm in the evening.
Sunday
 
 A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. Calm wind becoming northwest around 5 mph in the afternoon.
Sunday Night
 
 Mostly clear, with a low around 71. North northwest wind around 5 mph becoming calm.
Monday
 
 Mostly sunny, with a high near 92. Calm wind becoming west southwest around 5 mph.
Monday Night
 
 Partly cloudy, with a low around 73.
Tuesday
 
 A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
Tuesday Night
 
 A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Wednesday
 
 A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.

 

Forecast from NOAA-NWS for Gallatin TN.