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National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 1:31 pm CDT Oct 3, 2026
 
Tonight

Tonight: A slight chance of showers between 3am and 4am, then a chance of showers and thunderstorms after 4am. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 61. North northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Low: 61 °F		 Sunday

Sunday: A chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 11am. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 79. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 30%.
High: 79 °F		 Sunday
Night
Sunday Night: Mostly cloudy during the early evening, then gradual clearing, with a low around 53. North northeast wind around 5 mph.
Low: 53 °F		 Monday

Monday: Sunny, with a high near 78. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.
High: 78 °F		 Monday
Night
Monday Night: Clear, with a low around 46. Northeast wind 5 to 10 mph.
Low: 46 °F		 Tuesday

Tuesday: Sunny, with a high near 81. North wind around 5 mph.
High: 81 °F		 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 49. Northeast wind around 5 mph becoming calm.
Low: 49 °F		 Wednesday

Wednesday: Sunny, with a high near 84. Calm wind becoming southwest around 5 mph.
High: 84 °F		 Wednesday
Night
Wednesday Night: Clear, with a low around 48. Calm wind.
Low: 48 °F
Mostly Cloudy
then Chance
Showers and
Patchy Fog
 Chance
Showers and
Patchy Fog
then Mostly
Cloudy
 Gradual
Clearing

 Sunny


 Clear


 Sunny


 Mostly Clear


 Sunny


 Clear

 

Tonight
 
 A slight chance of showers between 3am and 4am, then a chance of showers and thunderstorms after 4am. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 61. North northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Sunday
 
 A chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 11am. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 79. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 30%.
Sunday Night
 
 Mostly cloudy during the early evening, then gradual clearing, with a low around 53. North northeast wind around 5 mph.
Monday
 
 Sunny, with a high near 78. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Monday Night
 
 Clear, with a low around 46. Northeast wind 5 to 10 mph.
Tuesday
 
 Sunny, with a high near 81. North wind around 5 mph.
Tuesday Night
 
 Mostly clear, with a low around 49. Northeast wind around 5 mph becoming calm.
Wednesday
 
 Sunny, with a high near 84. Calm wind becoming southwest around 5 mph.
Wednesday Night
 
 Clear, with a low around 48. Calm wind.
Thursday
 
 Sunny, with a high near 84.
Thursday Night
 
 Mostly clear, with a low around 48.
Friday
 
 Sunny, with a high near 86.
Friday Night
 
 Mostly clear, with a low around 52.
Saturday
 
 A 20 percent chance of showers. Sunny, with a high near 86.

 

Forecast from NOAA-NWS for Watertown TN.