National Weather Service Forecast for: Brentwood TN
Issued by: National Weather Service Nashville, TN
Updated: 1:31 am CDT Jun 30, 2026
 
Overnight

Overnight: Clear, with a low around 76. Calm wind.
Clear

 Tuesday

Tuesday: Sunny and hot, with a high near 98. Heat index values as high as 105. Calm wind becoming southwest around 5 mph.
Hot

 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 77. Southwest wind around 5 mph becoming calm.
Mostly Clear

 Wednesday

Wednesday: Sunny and hot, with a high near 99. Heat index values as high as 108. Calm wind becoming south southeast around 5 mph in the afternoon.
Hot

 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 78. Southwest wind around 5 mph becoming calm in the evening.
Mostly Clear

 Thursday

Thursday: A 40 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 99. Calm wind becoming north northeast around 5 mph in the afternoon.
Sunny then
Chance
T-storms
 Thursday
Night
Thursday Night: A 30 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 77. North wind around 5 mph becoming calm in the evening.
Chance
T-storms then
Chance
Showers
 Friday

Friday: A 50 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 97. Calm wind becoming north northeast around 5 mph in the afternoon.
Sunny then
Chance
T-storms
 Friday
Night
Friday Night: A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 75. Northwest wind around 5 mph becoming calm.
Chance
T-storms
Lo 76 °F Hi 98 °F Lo 77 °F Hi 99 °F Lo 78 °F Hi 99 °F Lo 77 °F Hi 97 °F Lo 75 °F

Extreme Heat Warning
 

Overnight
 
 Clear, with a low around 76. Calm wind.
Tuesday
 
 Sunny and hot, with a high near 98. Heat index values as high as 105. Calm wind becoming southwest around 5 mph.
Tuesday Night
 
 Mostly clear, with a low around 77. Southwest wind around 5 mph becoming calm.
Wednesday
 
 Sunny and hot, with a high near 99. Heat index values as high as 108. Calm wind becoming south southeast around 5 mph in the afternoon.
Wednesday Night
 
 Mostly clear, with a low around 78. Southwest wind around 5 mph becoming calm in the evening.
Thursday
 
 A 40 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 99. Calm wind becoming north northeast around 5 mph in the afternoon.
Thursday Night
 
 A 30 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 77. North wind around 5 mph becoming calm in the evening.
Friday
 
 A 50 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 97. Calm wind becoming north northeast around 5 mph in the afternoon.
Friday Night
 
 A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 75. Northwest wind around 5 mph becoming calm.
Independence Day
 
 A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 94.
Saturday Night
 
 A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75.
Sunday
 
 Showers and thunderstorms likely. Mostly sunny, with a high near 93. Chance of precipitation is 60%.
Sunday Night
 
 A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75.
Monday
 
 Showers and thunderstorms likely. Mostly sunny, with a high near 92. Chance of precipitation is 60%.

 

Forecast from NOAA-NWS for Brentwood TN.