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National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 1:31 pm CDT Oct 22, 2026
 
Tonight

Tonight: Clear, with a low around 41. Northeast wind around 5 mph.
Low: 41 °F
Friday

Friday: Sunny, with a high near 75. Northeast wind around 5 mph.
High: 75 °F
Friday
Night
Friday Night: Clear, with a low around 45. Northeast wind around 5 mph becoming calm  in the evening.
Low: 45 °F
Saturday

Saturday: Sunny, with a high near 75. Calm wind becoming south around 5 mph.
High: 75 °F
Saturday
Night
Saturday Night: Patchy fog after 4am.  Otherwise, mostly clear, with a low around 44. Calm wind.
Low: 44 °F
Sunday

Sunday: Patchy fog before 8am.  Otherwise, sunny, with a high near 75. Calm wind becoming north northeast around 5 mph in the afternoon.
High: 75 °F
Sunday
Night
Sunday Night: Mostly clear, with a low around 43. Calm wind.
Low: 43 °F
Monday

Monday: Mostly sunny, with a high near 74. Calm wind becoming northwest around 5 mph.
High: 74 °F
Monday
Night
Monday Night: Partly cloudy, with a low around 43. Calm wind.
Low: 43 °F
Clear

Sunny

Clear

Sunny

Mostly Clear
then Patchy
Fog
Patchy Fog
then Sunny
Mostly Clear

Mostly Sunny

Partly Cloudy

 

Tonight
 
Clear, with a low around 41. Northeast wind around 5 mph.
Friday
 
Sunny, with a high near 75. Northeast wind around 5 mph.
Friday Night
 
Clear, with a low around 45. 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
 
Patchy fog after 4am. Otherwise, mostly clear, with a low around 44. Calm wind.
Sunday
 
Patchy fog before 8am. Otherwise, sunny, with a high near 75. Calm wind becoming north northeast around 5 mph in the afternoon.
Sunday Night
 
Mostly clear, with a low around 43. Calm wind.
Monday
 
Mostly sunny, with a high near 74. Calm wind becoming northwest around 5 mph.
Monday Night
 
Partly cloudy, with a low around 43. Calm wind.
Tuesday
 
Mostly sunny, with a high near 75.
Tuesday Night
 
Partly cloudy, with a low around 47.
Wednesday
 
Mostly sunny, with a high near 74.
Wednesday Night
 
Mostly clear, with a low around 46.
Thursday
 
Sunny, with a high near 74.

 

Forecast from NOAA-NWS for Watertown TN.