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National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 6:51 pm CDT Sep 30, 2026
 
Overnight

Overnight: Partly cloudy, with a low around 64. South southeast wind around 5 mph.
Low: 64 °F		 Thursday

Thursday: Mostly sunny, with a high near 92. South wind 5 to 15 mph, with gusts as high as 20 mph.
High: 92 °F		 Thursday
Night
Thursday Night: Partly cloudy, with a low around 70. South wind around 5 mph.
Low: 70 °F		 Friday

Friday: Showers likely before 10am, then showers likely and possibly a thunderstorm between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Increasing clouds, with a high near 87. South wind 5 to 10 mph becoming west in the afternoon. Chance of precipitation is 70%.
High: 87 °F		 Friday
Night
Friday Night: A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then showers likely after 4am. Mostly cloudy, with a low around 64. North wind around 5 mph becoming calm. Chance of precipitation is 60%.
Low: 64 °F		 Saturday

Saturday: Showers likely before 7am, then showers likely and possibly a thunderstorm between 7am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 77. East northeast wind around 5 mph. Chance of precipitation is 70%.
High: 77 °F		 Saturday
Night
Saturday Night: A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 58. Northeast wind around 5 mph becoming southeast in the evening. Chance of precipitation is 60%.
Low: 58 °F		 Sunday

Sunday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 76. Light north northeast wind becoming north northwest 5 to 10 mph in the afternoon. Chance of precipitation is 50%.
High: 76 °F		 Sunday
Night
Sunday Night: Partly cloudy, with a low around 54. North northeast wind 5 to 10 mph.
Low: 54 °F
Partly Cloudy

 Mostly Sunny

 Partly Cloudy

 Showers
Likely

 Showers
Likely

 Showers
Likely

 Slight Chance
T-storms then
Showers
Likely
 Chance
Showers

 Partly Cloudy

 

Overnight
 
 Partly cloudy, with a low around 64. South southeast wind around 5 mph.
Thursday
 
 Mostly sunny, with a high near 92. South wind 5 to 15 mph, with gusts as high as 20 mph.
Thursday Night
 
 Partly cloudy, with a low around 70. South wind around 5 mph.
Friday
 
 Showers likely before 10am, then showers likely and possibly a thunderstorm between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Increasing clouds, with a high near 87. South wind 5 to 10 mph becoming west in the afternoon. Chance of precipitation is 70%.
Friday Night
 
 A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then showers likely after 4am. Mostly cloudy, with a low around 64. North wind around 5 mph becoming calm. Chance of precipitation is 60%.
Saturday
 
 Showers likely before 7am, then showers likely and possibly a thunderstorm between 7am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 77. East northeast wind around 5 mph. Chance of precipitation is 70%.
Saturday Night
 
 A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 58. Northeast wind around 5 mph becoming southeast in the evening. Chance of precipitation is 60%.
Sunday
 
 A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 76. Light north northeast wind becoming north northwest 5 to 10 mph in the afternoon. Chance of precipitation is 50%.
Sunday Night
 
 Partly cloudy, with a low around 54. North northeast wind 5 to 10 mph.
Monday
 
 Sunny, with a high near 77.
Monday Night
 
 Mostly clear, with a low around 45.
Tuesday
 
 Sunny, with a high near 76.
Tuesday Night
 
 Mostly clear, with a low around 48.
Wednesday
 
 Mostly sunny, with a high near 79.

 

Forecast from NOAA-NWS for Watertown TN.