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National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 1:31 pm CDT Oct 2, 2026
 
This
Afternoon
This Afternoon: Showers and possibly a thunderstorm. Steady temperature around 81. Northwest wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
High: 81 °F		 Tonight

Tonight: Showers and thunderstorms likely, mainly before 4am, then showers likely and possibly a thunderstorm after 5am. Mostly cloudy, with a low around 63. North northeast wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Low: 63 °F		 Saturday

Saturday: Showers likely and possibly a thunderstorm before 7am, then a chance of showers and thunderstorms between 7am and 10am, then a slight chance of showers after 10am. Mostly cloudy, with a high near 78. Northeast wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
High: 78 °F		 Saturday
Night
Saturday Night: A 30 percent chance of showers and thunderstorms after 1am. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 63. Northeast wind around 5 mph becoming calm in the evening.
Low: 63 °F		 Sunday

Sunday: A chance of showers, with thunderstorms also possible after 1pm. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 77. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 50%.
High: 77 °F		 Sunday
Night
Sunday Night: Mostly cloudy, with a low around 52. North wind around 5 mph.
Low: 52 °F		 Monday

Monday: Sunny, with a high near 77. North northeast wind 5 to 15 mph, with gusts as high as 20 mph.
High: 77 °F		 Monday
Night
Monday Night: Clear, with a low around 46. Northeast wind around 10 mph, with gusts as high as 20 mph.
Low: 46 °F		 Tuesday

Tuesday: Sunny, with a high near 78. Northeast wind around 5 mph.
High: 78 °F
Showers

 Showers
Likely

 Showers
Likely then
Slight Chance
Showers
 Mostly Cloudy
then Chance
Showers and
Patchy Fog
 Chance
Showers and
Patchy Fog
 Mostly Cloudy

 Sunny

 Clear

 Sunny

 

This Afternoon
 
 Showers and possibly a thunderstorm. Steady temperature around 81. Northwest wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
 
 Showers and thunderstorms likely, mainly before 4am, then showers likely and possibly a thunderstorm after 5am. Mostly cloudy, with a low around 63. North northeast wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
 
 Showers likely and possibly a thunderstorm before 7am, then a chance of showers and thunderstorms between 7am and 10am, then a slight chance of showers after 10am. Mostly cloudy, with a high near 78. Northeast wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
 
 A 30 percent chance of showers and thunderstorms after 1am. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 63. Northeast wind around 5 mph becoming calm in the evening.
Sunday
 
 A chance of showers, with thunderstorms also possible after 1pm. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 77. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 50%.
Sunday Night
 
 Mostly cloudy, with a low around 52. North wind around 5 mph.
Monday
 
 Sunny, with a high near 77. North northeast wind 5 to 15 mph, with gusts as high as 20 mph.
Monday Night
 
 Clear, with a low around 46. Northeast wind around 10 mph, with gusts as high as 20 mph.
Tuesday
 
 Sunny, with a high near 78. Northeast wind around 5 mph.
Tuesday Night
 
 Mostly clear, with a low around 47.
Wednesday
 
 Sunny, with a high near 80.
Wednesday Night
 
 Clear, with a low around 46.
Thursday
 
 Sunny, with a high near 82.
Thursday Night
 
 Clear, with a low around 47.
Friday
 
 Sunny, with a high near 84.

 

Forecast from NOAA-NWS for Watertown TN.