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National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 1:31 pm CDT Oct 23, 2026
 
Tonight

Tonight: 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 76. Calm wind becoming south southwest around 5 mph.
High: 76 °F		 Saturday
Night
Saturday Night: Mostly clear, with a low around 45. Calm wind.
Low: 45 °F		 Sunday

Sunday: Sunny, with a high near 75. Calm wind becoming north northeast around 5 mph in the afternoon.
High: 75 °F		 Sunday
Night
Sunday Night: Patchy fog after 1am. Otherwise, mostly clear, with a low around 43. Calm wind.
Low: 43 °F		 Monday

Monday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 75. Calm wind becoming northwest around 5 mph.
High: 75 °F		 Monday
Night
Monday Night: Partly cloudy, with a low around 43. Calm wind.
Low: 43 °F		 Tuesday

Tuesday: Mostly sunny, with a high near 76. Calm wind.
High: 76 °F		 Tuesday
Night
Tuesday Night: Mostly cloudy, with a low around 48. Calm wind.
Low: 48 °F
Clear

 Sunny

 Mostly Clear

 Sunny

 Mostly Clear
then Patchy
Fog
 Patchy Fog
then Mostly
Sunny
 Partly Cloudy

 Mostly Sunny

 Mostly Cloudy

 

Tonight
 
 Clear, with a low around 45. Northeast wind around 5 mph becoming calm in the evening.
Saturday
 
 Sunny, with a high near 76. Calm wind becoming south southwest around 5 mph.
Saturday Night
 
 Mostly clear, with a low around 45. Calm wind.
Sunday
 
 Sunny, with a high near 75. Calm wind becoming north northeast around 5 mph in the afternoon.
Sunday Night
 
 Patchy fog after 1am. Otherwise, mostly clear, with a low around 43. Calm wind.
Monday
 
 Patchy fog before 8am. Otherwise, mostly sunny, with a high near 75. 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 76. Calm wind.
Tuesday Night
 
 Mostly cloudy, with a low around 48. Calm wind.
Wednesday
 
 Partly sunny, with a high near 76.
Wednesday Night
 
 Partly cloudy, with a low around 46.
Thursday
 
 Sunny, with a high near 77.
Thursday Night
 
 Mostly clear, with a low around 45.
Friday
 
 Mostly sunny, with a high near 76.

 

Forecast from NOAA-NWS for Watertown TN.