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National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 6:52 am CDT Jun 20, 2026
 
Today

Today: Partly sunny, then gradually becoming sunny, with a high near 87. Calm wind.
High: 87 °F		 Tonight

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

Sunday: A 30 percent chance of showers and thunderstorms, mainly after 2pm. Sunny, with a high near 89. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.
High: 89 °F		 Sunday
Night
Sunday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 72. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
Low: 72 °F		 Monday

Monday: Showers and possibly a thunderstorm. High near 83. Southwest wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%.
High: 83 °F		 Monday
Night
Monday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Low: 66 °F		 Tuesday

Tuesday: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 83. Calm wind becoming north northwest around 5 mph in the morning.
High: 83 °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 84. Calm wind becoming north northwest around 5 mph in the afternoon.
High: 84 °F
Becoming
Sunny

 Clear

 Sunny then
Chance
T-storms
 Chance
T-storms

 Showers

 Showers
Likely

 Partly Sunny
then Slight
Chance
T-storms
 Partly Cloudy

 Mostly Sunny
then Slight
Chance
T-storms

 

Today
 
 Partly sunny, then gradually becoming sunny, with a high near 87. Calm wind.
Tonight
 
 Clear, with a low around 64. Calm wind.
Sunday
 
 A 30 percent chance of showers and thunderstorms, mainly after 2pm. Sunny, with a high near 89. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday Night
 
 A chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 72. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
Monday
 
 Showers and possibly a thunderstorm. High near 83. Southwest wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%.
Monday Night
 
 Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Tuesday
 
 A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 83. Calm wind becoming north northwest around 5 mph in the morning.
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 84. Calm wind becoming north northwest around 5 mph in the afternoon.
Wednesday Night
 
 Mostly clear, with a low around 64.
Thursday
 
 Sunny, with a high near 85.
Thursday Night
 
 A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 64.
Friday
 
 A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.

 

Forecast from NOAA-NWS for Watertown TN.