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National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 1:31 am CDT Oct 20, 2026
 
Today

Today: Patchy fog before 7am. Otherwise, mostly sunny, with a high near 74. Calm wind becoming north northeast around 5 mph in the afternoon.
High: 74 °F		 Tonight

Tonight: Clear, with a low around 41. North northeast wind around 5 mph becoming calm in the evening.
Low: 41 °F		 Wednesday

Wednesday: Sunny, with a high near 75. Calm wind becoming north around 5 mph in the afternoon.
High: 75 °F		 Wednesday
Night
Wednesday Night: Patchy fog after 4am. Otherwise, clear, with a low around 42. North wind around 5 mph becoming calm.
Low: 42 °F		 Thursday

Thursday: Patchy fog before 8am. Otherwise, sunny, with a high near 74. Light northeast wind becoming north northeast 5 to 10 mph in the afternoon.
High: 74 °F		 Thursday
Night
Thursday Night: Clear, with a low around 44. Northeast wind around 5 mph.
Low: 44 °F		 Friday

Friday: Sunny, with a high near 74. East northeast wind around 5 mph.
High: 74 °F		 Friday
Night
Friday Night: Clear, with a low around 46. Northeast wind around 5 mph becoming calm in the evening.
Low: 46 °F		 Saturday

Saturday: Sunny, with a high near 75. Calm wind becoming south around 5 mph.
High: 75 °F
Patchy Fog
then Sunny
 Clear
 Sunny
 Clear then
Patchy Fog
 Patchy Fog
then Sunny
 Clear
 Sunny
 Clear
 Sunny

 

Today
 
 Patchy fog before 7am. Otherwise, mostly sunny, with a high near 74. Calm wind becoming north northeast around 5 mph in the afternoon.
Tonight
 
 Clear, with a low around 41. North northeast wind around 5 mph becoming calm in the evening.
Wednesday
 
 Sunny, with a high near 75. Calm wind becoming north around 5 mph in the afternoon.
Wednesday Night
 
 Patchy fog after 4am. Otherwise, clear, with a low around 42. North wind around 5 mph becoming calm.
Thursday
 
 Patchy fog before 8am. Otherwise, sunny, with a high near 74. Light northeast wind becoming north northeast 5 to 10 mph in the afternoon.
Thursday Night
 
 Clear, with a low around 44. Northeast wind around 5 mph.
Friday
 
 Sunny, with a high near 74. East northeast wind around 5 mph.
Friday Night
 
 Clear, with a low around 46. Northeast wind around 5 mph becoming calm in the evening.
Saturday
 
 Sunny, with a high near 75. Calm wind becoming south around 5 mph.
Saturday Night
 
 Mostly clear, with a low around 46.
Sunday
 
 Sunny, with a high near 74.
Sunday Night
 
 Partly cloudy, with a low around 47.
Monday
 
 Mostly sunny, with a high near 75.

 

Forecast from NOAA-NWS for Watertown TN.