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National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 1:31 pm CDT Oct 24, 2026
 
Tonight

Tonight: Patchy fog after 2am. Otherwise, mostly clear, with a low around 45. Calm wind.
Low: 45 °F		 Sunday

Sunday: Patchy fog before 9am. 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: Patchy fog after midnight. Otherwise, mostly clear, with a low around 45. Calm wind.
Low: 45 °F		 Monday

Monday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 75. Calm wind becoming northwest around 5 mph.
High: 75 °F		 Monday
Night
Monday Night: Patchy fog after midnight. Otherwise, partly cloudy, with a low around 44. Calm wind.
Low: 44 °F		 Tuesday

Tuesday: Areas of fog before 8am. Otherwise, mostly sunny, with a high near 77. Calm wind.
High: 77 °F		 Tuesday
Night
Tuesday Night: Mostly cloudy, with a low around 49. Calm wind.
Low: 49 °F		 Wednesday

Wednesday: Partly sunny, with a high near 76. Light south southeast wind becoming south 5 to 10 mph in the morning.
High: 76 °F		 Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 46. Calm wind becoming south southeast around 5 mph.
Low: 46 °F
Patchy Fog

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

 Partly Sunny

 Partly Cloudy

 

Tonight
 
 Patchy fog after 2am. Otherwise, mostly clear, with a low around 45. Calm wind.
Sunday
 
 Patchy fog before 9am. Otherwise, sunny, with a high near 75. Calm wind becoming north northeast around 5 mph in the afternoon.
Sunday Night
 
 Patchy fog after midnight. Otherwise, mostly clear, with a low around 45. Calm wind.
Monday
 
 Patchy fog before 9am. Otherwise, mostly sunny, with a high near 75. Calm wind becoming northwest around 5 mph.
Monday Night
 
 Patchy fog after midnight. Otherwise, partly cloudy, with a low around 44. Calm wind.
Tuesday
 
 Areas of fog before 8am. Otherwise, mostly sunny, with a high near 77. Calm wind.
Tuesday Night
 
 Mostly cloudy, with a low around 49. Calm wind.
Wednesday
 
 Partly sunny, with a high near 76. Light south southeast wind becoming south 5 to 10 mph in the morning.
Wednesday Night
 
 Partly cloudy, with a low around 46. Calm wind becoming south southeast around 5 mph.
Thursday
 
 Sunny, with a high near 78.
Thursday Night
 
 Mostly clear, with a low around 47.
Friday
 
 Mostly sunny, with a high near 80.
Friday Night
 
 Partly cloudy, with a low around 54.
Saturday
 
 Partly sunny, with a high near 79.

 

Forecast from NOAA-NWS for Watertown TN.