Skip to main content.
National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 7:16 pm CDT Jun 20, 2026
 
Tonight

Tonight: Clear, with a low around 64. Calm wind.
Low: 64 °F		 Sunday

Sunday: Sunny, with a high near 89. Light south southwest wind increasing to 5 to 10 mph in the morning.
High: 89 °F		 Sunday
Night
Sunday Night: A 50 percent chance of showers and thunderstorms after 1am. Increasing clouds, with a low around 72. South wind 10 to 15 mph, with gusts as high as 25 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Low: 72 °F		 Monday

Monday: Showers and possibly a thunderstorm. High near 84. Southwest wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%.
High: 84 °F		 Monday
Night
Monday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. West wind 5 to 10 mph becoming light in the evening. Chance of precipitation is 70%.
Low: 66 °F		 Tuesday

Tuesday: A slight chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and 1pm. Partly sunny, with a high near 82. Northwest wind around 5 mph. Chance of precipitation is 20%.
High: 82 °F		 Tuesday
Night
Tuesday Night: Partly cloudy, with a low around 63. North wind around 5 mph becoming calm.
Low: 63 °F		 Wednesday

Wednesday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 85. Calm wind becoming north northwest around 5 mph in the afternoon.
High: 85 °F		 Wednesday
Night
Wednesday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 64. Calm wind.
Low: 64 °F
Clear

 Sunny

 Partly Cloudy
then Chance
T-storms
 Showers

 Showers
Likely

 Slight Chance
T-storms

 Partly Cloudy

 Mostly Sunny
then Slight
Chance
T-storms
 Slight Chance
T-storms

 

Tonight
 
 Clear, with a low around 64. Calm wind.
Sunday
 
 Sunny, with a high near 89. Light south southwest wind increasing to 5 to 10 mph in the morning.
Sunday Night
 
 A 50 percent chance of showers and thunderstorms after 1am. Increasing clouds, with a low around 72. South wind 10 to 15 mph, with gusts as high as 25 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
 
 Showers and possibly a thunderstorm. High near 84. Southwest wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%.
Monday Night
 
 Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. West wind 5 to 10 mph becoming light in the evening. Chance of precipitation is 70%.
Tuesday
 
 A slight chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and 1pm. Partly sunny, with a high near 82. Northwest wind around 5 mph. Chance of precipitation is 20%.
Tuesday Night
 
 Partly cloudy, with a low around 63. North wind around 5 mph becoming calm.
Wednesday
 
 A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 85. Calm wind becoming north northwest around 5 mph in the afternoon.
Wednesday Night
 
 A 20 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 64. Calm wind.
Thursday
 
 A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85.
Thursday Night
 
 A 20 percent chance of showers. Partly cloudy, with a low around 64.
Friday
 
 A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Friday Night
 
 A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66.
Saturday
 
 A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.

 

Forecast from NOAA-NWS for Watertown TN.