National Weather Service Forecast for: Gallatin TN
Issued by: National Weather Service Nashville, TN
Updated: 1:31 am CDT Jun 22, 2026
 
Overnight

Overnight: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 73. South southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Showers
Likely

 Monday

Monday: Showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 3pm, then a chance of showers and thunderstorms after 3pm. High near 84. South southwest wind around 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Showers

 Monday
Night
Monday Night: A 30 percent chance of showers, mainly before 7pm. Mostly cloudy, with a low around 63. Northwest wind around 5 mph becoming calm in the evening.
Chance
Showers then
Mostly Cloudy
 Tuesday

Tuesday: Partly sunny, then gradually becoming sunny, with a high near 83. North northeast wind around 5 mph.
Becoming
Sunny

 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 61. North northeast wind around 5 mph becoming calm.
Mostly Clear

 Wednesday

Wednesday: Sunny, with a high near 87. Calm wind becoming south around 5 mph.
Sunny

 Wednesday
Night
Wednesday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 68. Calm wind. Chance of precipitation is 40%.
Chance
T-storms then
Chance
Showers
 Thursday

Thursday: A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 89. Calm wind becoming southwest around 5 mph in the afternoon.
Slight Chance
T-storms then
Chance
T-storms
 Thursday
Night
Thursday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69. Southwest wind around 5 mph becoming calm.
Chance
T-storms
Lo 73 °F Hi 84 °F Lo 63 °F Hi 83 °F Lo 61 °F Hi 87 °F Lo 68 °F Hi 89 °F Lo 69 °F

 

Overnight
 
 Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 73. South southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
 
 Showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 3pm, then a chance of showers and thunderstorms after 3pm. High near 84. South southwest wind around 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
 
 A 30 percent chance of showers, mainly before 7pm. Mostly cloudy, with a low around 63. Northwest wind around 5 mph becoming calm in the evening.
Tuesday
 
 Partly sunny, then gradually becoming sunny, with a high near 83. North northeast wind around 5 mph.
Tuesday Night
 
 Mostly clear, with a low around 61. North northeast wind around 5 mph becoming calm.
Wednesday
 
 Sunny, with a high near 87. Calm wind becoming south around 5 mph.
Wednesday Night
 
 A chance of showers and thunderstorms. Partly cloudy, with a low around 68. Calm wind. Chance of precipitation is 40%.
Thursday
 
 A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 89. Calm wind becoming southwest around 5 mph in the afternoon.
Thursday Night
 
 A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69. Southwest wind around 5 mph becoming calm.
Friday
 
 A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 89.
Friday Night
 
 A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Saturday
 
 A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 90.
Saturday Night
 
 A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Sunday
 
 A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.

 

Forecast from NOAA-NWS for Gallatin TN.