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National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 2:36 pm CDT Jul 30, 2026
 
Tonight

Tonight: Increasing clouds, with a low around 62. Northeast wind around 5 mph becoming calm in the evening.
Low: 62 °F		 Friday

Friday: Mostly sunny, with a high near 88. Calm wind becoming southeast around 5 mph.
High: 88 °F		 Friday
Night
Friday Night: A 40 percent chance of showers and thunderstorms after 3am. Mostly cloudy, with a low around 70. Calm wind becoming south around 5 mph after midnight.
Low: 70 °F		 Saturday

Saturday: Showers and possibly a thunderstorm. High near 85. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
High: 85 °F		 Saturday
Night
Saturday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 69. South southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Low: 69 °F		 Sunday

Sunday: A slight chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 83. South southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
High: 83 °F		 Sunday
Night
Sunday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 68. West wind around 5 mph becoming calm in the evening.
Low: 68 °F		 Monday

Monday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 84. South wind around 5 mph becoming north in the afternoon.
High: 84 °F		 Monday
Night
Monday Night: Partly cloudy, with a low around 67. North northeast wind around 5 mph becoming calm in the evening.
Low: 67 °F
Increasing
Clouds

 Mostly Sunny

 Partly Cloudy
then Chance
T-storms
 Showers

 Showers
Likely

 Slight Chance
T-storms then
Showers
Likely
 Slight Chance
T-storms

 Chance
Showers then
Chance
T-storms
 Partly Cloudy

 

Tonight
 
 Increasing clouds, with a low around 62. Northeast wind around 5 mph becoming calm in the evening.
Friday
 
 Mostly sunny, with a high near 88. Calm wind becoming southeast around 5 mph.
Friday Night
 
 A 40 percent chance of showers and thunderstorms after 3am. Mostly cloudy, with a low around 70. Calm wind becoming south around 5 mph after midnight.
Saturday
 
 Showers and possibly a thunderstorm. High near 85. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
Saturday Night
 
 Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 69. South southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Sunday
 
 A slight chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 83. South southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Sunday Night
 
 A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 68. West wind around 5 mph becoming calm in the evening.
Monday
 
 A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 84. South wind around 5 mph becoming north in the afternoon.
Monday Night
 
 Partly cloudy, with a low around 67. North northeast wind around 5 mph becoming calm in the evening.
Tuesday
 
 A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Tuesday Night
 
 A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Wednesday
 
 A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Wednesday Night
 
 A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Thursday
 
 A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.

 

Forecast from NOAA-NWS for Watertown TN.