Skip to main content.
National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 5:21 am CDT Aug 29, 2026
 
Today

Today: Sunny, with a high near 92. Calm wind becoming east southeast around 5 mph.
High: 92 °F
Tonight

Tonight: Mostly clear, with a low around 70. Calm wind becoming south around 5 mph after midnight.
Low: 70 °F
Sunday

Sunday: Increasing clouds, with a high near 92. Heat index values as high as 98. South wind around 5 mph.
High: 92 °F
Sunday
Night
Sunday Night: Mostly clear, with a low around 71. Calm wind becoming south southeast around 5 mph.
Low: 71 °F
Monday

Monday: Sunny, with a high near 93. South southwest wind around 5 mph becoming calm  in the afternoon.
High: 93 °F
Monday
Night
Monday Night: Mostly clear, with a low around 71. Calm wind.
Low: 71 °F
Tuesday

Tuesday: Sunny, with a high near 94. Calm wind becoming south southwest around 5 mph.
High: 94 °F
Tuesday
Night
Tuesday Night: Mostly clear, with a low around 72. Calm wind.
Low: 72 °F
Wednesday

Wednesday: Sunny, with a high near 95. Calm wind becoming southwest around 5 mph.
High: 95 °F
Sunny
Mostly Clear
Increasing
Clouds
Mostly Clear
Sunny
Mostly Clear
Sunny
Mostly Clear
Sunny

 

Today
 
Sunny, with a high near 92. Calm wind becoming east southeast around 5 mph.
Tonight
 
Mostly clear, with a low around 70. Calm wind becoming south around 5 mph after midnight.
Sunday
 
Increasing clouds, with a high near 92. Heat index values as high as 98. South wind around 5 mph.
Sunday Night
 
Mostly clear, with a low around 71. Calm wind becoming south southeast around 5 mph.
Monday
 
Sunny, with a high near 93. South southwest wind around 5 mph becoming calm in the afternoon.
Monday Night
 
Mostly clear, with a low around 71. Calm wind.
Tuesday
 
Sunny, with a high near 94. Calm wind becoming south southwest around 5 mph.
Tuesday Night
 
Mostly clear, with a low around 72. Calm wind.
Wednesday
 
Sunny, with a high near 95. Calm wind becoming southwest around 5 mph.
Wednesday Night
 
Mostly clear, with a low around 72.
Thursday
 
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 96.
Thursday Night
 
Mostly clear, with a low around 72.
Friday
 
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 95.

 

Forecast from NOAA-NWS for Watertown TN.