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National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 1:31 pm CDT Sep 26, 2026
 
This
Afternoon
This Afternoon: Mostly sunny, with a high near 79. North northeast wind 5 to 10 mph.
High: 79 °F		 Tonight

Tonight: Partly cloudy, with a low around 50. North northeast wind around 5 mph becoming calm in the evening.
Low: 50 °F		 Sunday

Sunday: Mostly sunny, with a high near 77. Light and variable wind becoming north 5 to 10 mph in the morning.
High: 77 °F		 Sunday
Night
Sunday Night: Mostly clear, with a low around 49. North wind around 5 mph becoming calm in the evening.
Low: 49 °F		 Monday

Monday: Sunny, with a high near 79. Calm wind becoming north northeast around 5 mph in the afternoon.
High: 79 °F		 Monday
Night
Monday Night: Clear, with a low around 51. Northeast wind around 5 mph becoming calm.
Low: 51 °F		 Tuesday

Tuesday: Patchy fog before 7am. Otherwise, sunny, with a high near 84. Calm wind becoming south around 5 mph.
High: 84 °F		 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 60. Calm wind becoming south southeast around 5 mph.
Low: 60 °F		 Wednesday

Wednesday: Mostly sunny, with a high near 89. South wind 5 to 10 mph.
High: 89 °F
Mostly Sunny
 Partly Cloudy
 Mostly Sunny
 Mostly Clear
 Sunny
 Clear
 Patchy Fog
then Sunny
 Mostly Clear
 Mostly Sunny

 

This Afternoon
 
 Mostly sunny, with a high near 79. North northeast wind 5 to 10 mph.
Tonight
 
 Partly cloudy, with a low around 50. North northeast wind around 5 mph becoming calm in the evening.
Sunday
 
 Mostly sunny, with a high near 77. Light and variable wind becoming north 5 to 10 mph in the morning.
Sunday Night
 
 Mostly clear, with a low around 49. North wind around 5 mph becoming calm in the evening.
Monday
 
 Sunny, with a high near 79. Calm wind becoming north northeast around 5 mph in the afternoon.
Monday Night
 
 Clear, with a low around 51. Northeast wind around 5 mph becoming calm.
Tuesday
 
 Patchy fog before 7am. Otherwise, sunny, with a high near 84. Calm wind becoming south around 5 mph.
Tuesday Night
 
 Mostly clear, with a low around 60. Calm wind becoming south southeast around 5 mph.
Wednesday
 
 Mostly sunny, with a high near 89. South wind 5 to 10 mph.
Wednesday Night
 
 Partly cloudy, with a low around 68.
Thursday
 
 A 20 percent chance of showers. Mostly sunny, with a high near 88.
Thursday Night
 
 A 30 percent chance of showers. Mostly cloudy, with a low around 68.
Friday
 
 A 40 percent chance of showers. Partly sunny, with a high near 83.

 

Forecast from NOAA-NWS for Watertown TN.