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National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 1:31 am CDT Jun 24, 2026
 
Overnight

Overnight: Areas of fog after 5am. Otherwise, partly cloudy, with a low around 58. Calm wind.
Low: 58 °F		 Wednesday

Wednesday: Mostly sunny, with a high near 84. Calm wind.
High: 84 °F		 Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 63. Calm wind.
Low: 63 °F		 Thursday

Thursday: Mostly sunny, with a high near 88. Calm wind becoming southwest around 5 mph in the afternoon.
High: 88 °F		 Thursday
Night
Thursday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 69. Calm wind becoming south around 5 mph after midnight. Chance of precipitation is 30%.
Low: 69 °F		 Friday

Friday: A chance of showers, with thunderstorms also possible after 10am. Mostly sunny, with a high near 90. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
High: 90 °F		 Friday
Night
Friday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 73. South southwest wind around 10 mph, with gusts as high as 20 mph.
Low: 73 °F		 Saturday

Saturday: A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. Southwest wind around 10 mph, with gusts as high as 20 mph.
High: 90 °F		 Saturday
Night
Saturday Night: A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 72. South southwest wind around 5 mph.
Low: 72 °F
Areas Fog

 Mostly Sunny

 Partly Cloudy

 Mostly Sunny

 Slight Chance
T-storms then
Chance
Showers
 Chance
Showers then
Chance
T-storms
 Partly Cloudy
then Chance
T-storms
 Chance
T-storms

 Chance
T-storms

 

Overnight
 
 Areas of fog after 5am. Otherwise, partly cloudy, with a low around 58. Calm wind.
Wednesday
 
 Mostly sunny, with a high near 84. Calm wind.
Wednesday Night
 
 Partly cloudy, with a low around 63. Calm wind.
Thursday
 
 Mostly sunny, with a high near 88. Calm wind becoming southwest around 5 mph in the afternoon.
Thursday Night
 
 A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 69. Calm wind becoming south around 5 mph after midnight. Chance of precipitation is 30%.
Friday
 
 A chance of showers, with thunderstorms also possible after 10am. Mostly sunny, with a high near 90. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Friday Night
 
 A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 73. South southwest wind around 10 mph, with gusts as high as 20 mph.
Saturday
 
 A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. Southwest wind around 10 mph, with gusts as high as 20 mph.
Saturday Night
 
 A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 72. South southwest wind around 5 mph.
Sunday
 
 A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 92.
Sunday Night
 
 Mostly clear, with a low around 73.
Monday
 
 Sunny, with a high near 95.
Monday Night
 
 Clear, with a low around 74.
Tuesday
 
 Sunny, with a high near 95.

 

Forecast from NOAA-NWS for Watertown TN.