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National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 5:16 am CDT Oct 25, 2026
 
This
Afternoon
This Afternoon: Sunny, with a high near 75. Calm wind becoming north northeast around 5 mph.
High: 75 °F		 Tonight

Tonight: Patchy fog between 2am and 5am. Otherwise, mostly clear, with a low around 45. Calm wind.
Low: 45 °F		 Monday

Monday: Patchy fog before 9am. Otherwise, increasing clouds, with a high near 74. Calm wind becoming north around 5 mph.
High: 74 °F		 Monday
Night
Monday Night: Patchy fog after 2am. Otherwise, partly cloudy, with a low around 42. Calm wind.
Low: 42 °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 48. Calm wind.
Low: 48 °F		 Wednesday

Wednesday: Partly sunny, with a high near 75. Light south southeast wind becoming south 5 to 10 mph in the morning.
High: 75 °F		 Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 45. Calm wind.
Low: 45 °F		 Thursday

Thursday: Sunny, with a high near 78. Calm wind becoming south around 5 mph.
High: 78 °F
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

 Sunny

 

This Afternoon
 
 Sunny, with a high near 75. Calm wind becoming north northeast around 5 mph.
Tonight
 
 Patchy fog between 2am and 5am. Otherwise, mostly clear, with a low around 45. Calm wind.
Monday
 
 Patchy fog before 9am. Otherwise, increasing clouds, with a high near 74. Calm wind becoming north around 5 mph.
Monday Night
 
 Patchy fog after 2am. Otherwise, partly cloudy, with a low around 42. 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 48. Calm wind.
Wednesday
 
 Partly sunny, with a high near 75. Light south southeast wind becoming south 5 to 10 mph in the morning.
Wednesday Night
 
 Partly cloudy, with a low around 45. Calm wind.
Thursday
 
 Sunny, with a high near 78. Calm wind becoming south around 5 mph.
Thursday Night
 
 Mostly clear, with a low around 45.
Friday
 
 Mostly sunny, with a high near 79.
Friday Night
 
 Partly cloudy, with a low around 53.
Saturday
 
 A 20 percent chance of showers. Partly sunny, with a high near 79.

 

Forecast from NOAA-NWS for Watertown TN.