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National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 6:06 am CDT Oct 22, 2026
 
Today

Today: Sunny, with a high near 75. Light east northeast wind becoming north 5 to 10 mph in the afternoon.
High: 75 °F
Tonight

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

Friday: Sunny, with a high near 75. East northeast wind around 5 mph.
High: 75 °F
Friday
Night
Friday Night: Clear, with a low around 42. Northeast wind around 5 mph becoming calm  in the evening.
Low: 42 °F
Saturday

Saturday: Sunny, with a high near 75. Calm wind becoming south around 5 mph.
High: 75 °F
Saturday
Night
Saturday Night: Mostly clear, with a low around 43. Calm wind.
Low: 43 °F
Sunday

Sunday: Patchy fog before 8am.  Otherwise, sunny, with a high near 74. Calm wind becoming north northeast around 5 mph in the afternoon.
High: 74 °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 73. Calm wind becoming west around 5 mph.
High: 73 °F
Sunny
Clear
Sunny
Clear
Sunny
Mostly Clear
Patchy Fog
then Sunny
Mostly Clear
Mostly Sunny

 

Today
 
Sunny, with a high near 75. Light east northeast wind becoming north 5 to 10 mph in the afternoon.
Tonight
 
Clear, with a low around 41. Northeast wind around 5 mph.
Friday
 
Sunny, with a high near 75. East northeast wind around 5 mph.
Friday Night
 
Clear, with a low around 42. 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 43. Calm wind.
Sunday
 
Patchy fog before 8am. Otherwise, sunny, with a high near 74. 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 73. Calm wind becoming west around 5 mph.
Monday Night
 
Partly cloudy, with a low around 44.
Tuesday
 
Mostly sunny, with a high near 74.
Tuesday Night
 
Partly cloudy, with a low around 46.
Wednesday
 
Mostly sunny, with a high near 73.

 

Forecast from NOAA-NWS for Watertown TN.