Skip to main content.
National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 1:31 pm CDT Aug 22, 2026
 
This
Afternoon
This Afternoon: Sunny, with a high near 90. West northwest wind 5 to 10 mph.
High: 90 °F
Tonight

Tonight: A 10 percent chance of showers and thunderstorms before 7pm.  Mostly clear, with a low around 63. Northwest wind around 5 mph becoming calm  in the evening.
Low: 63 °F
Sunday

Sunday: Sunny, with a high near 86. Calm wind becoming north northwest around 5 mph in the afternoon.
High: 86 °F
Sunday
Night
Sunday Night: Partly cloudy, with a low around 61. North northwest wind around 5 mph becoming calm.
Low: 61 °F
Monday

Monday: Sunny, with a high near 86. Calm wind becoming north northwest around 5 mph.
High: 86 °F
Monday
Night
Monday Night: A 20 percent chance of showers after 1am.  Partly cloudy, with a low around 62. Calm wind.
Low: 62 °F
Tuesday

Tuesday: Mostly sunny, with a high near 87. Calm wind becoming southeast around 5 mph.
High: 87 °F
Tuesday
Night
Tuesday Night: Mostly clear, with a low around 65. Calm wind.
Low: 65 °F
Wednesday

Wednesday: A 30 percent chance of showers and thunderstorms, mainly after 1pm.  Mostly sunny, with a high near 90. Calm wind becoming south southwest around 5 mph.
High: 90 °F
Sunny

Slight Chance
T-storms then
Mostly Clear
Sunny

Partly Cloudy

Sunny

Partly Cloudy
then Slight
Chance
Showers
Mostly Sunny

Mostly Clear

Chance
T-storms

 

This Afternoon
 
Sunny, with a high near 90. West northwest wind 5 to 10 mph.
Tonight
 
A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 63. Northwest wind around 5 mph becoming calm in the evening.
Sunday
 
Sunny, with a high near 86. Calm wind becoming north northwest around 5 mph in the afternoon.
Sunday Night
 
Partly cloudy, with a low around 61. North northwest wind around 5 mph becoming calm.
Monday
 
Sunny, with a high near 86. Calm wind becoming north northwest around 5 mph.
Monday Night
 
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 62. Calm wind.
Tuesday
 
Mostly sunny, with a high near 87. Calm wind becoming southeast around 5 mph.
Tuesday Night
 
Mostly clear, with a low around 65. Calm wind.
Wednesday
 
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 90. Calm wind becoming south southwest around 5 mph.
Wednesday Night
 
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 40%.
Thursday
 
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Thursday Night
 
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Friday
 
A 20 percent chance of showers. Sunny, with a high near 89.

 

Forecast from NOAA-NWS for Watertown TN.