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National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 10:41 am CDT Oct 4, 2026
 
Today

Today: Mostly cloudy, with a high near 79. North northeast wind around 5 mph.
High: 79 °F
Tonight

Tonight: Mostly cloudy, with a low around 51. North wind around 5 mph.
Low: 51 °F
Monday

Monday: Sunny, with a high near 79. North northeast wind 5 to 10 mph, with gusts as high as 20 mph.
High: 79 °F
Monday
Night
Monday Night: Clear, with a low around 45. Northeast wind around 5 mph.
Low: 45 °F
Tuesday

Tuesday: Sunny, with a high near 82. Northeast wind around 5 mph becoming west in the afternoon.
High: 82 °F
Tuesday
Night
Tuesday Night: Patchy fog between 3am and 4am.  Otherwise, clear, with a low around 49. Calm wind.
Low: 49 °F
Wednesday

Wednesday: Sunny, with a high near 83. Calm wind becoming west southwest around 5 mph in the morning.
High: 83 °F
Wednesday
Night
Wednesday Night: Clear, with a low around 49. Calm wind.
Low: 49 °F
Thursday

Thursday: Sunny, with a high near 84. Calm wind becoming north around 5 mph in the afternoon.
High: 84 °F
Mostly Cloudy
Mostly Cloudy
Sunny
Clear
Sunny
Clear then
Patchy Fog
Sunny
Clear
Sunny

 

Today
 
Mostly cloudy, with a high near 79. North northeast wind around 5 mph.
Tonight
 
Mostly cloudy, with a low around 51. North wind around 5 mph.
Monday
 
Sunny, with a high near 79. North northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
 
Clear, with a low around 45. Northeast wind around 5 mph.
Tuesday
 
Sunny, with a high near 82. Northeast wind around 5 mph becoming west in the afternoon.
Tuesday Night
 
Patchy fog between 3am and 4am. Otherwise, clear, with a low around 49. Calm wind.
Wednesday
 
Sunny, with a high near 83. Calm wind becoming west southwest around 5 mph in the morning.
Wednesday Night
 
Clear, with a low around 49. Calm wind.
Thursday
 
Sunny, with a high near 84. Calm wind becoming north around 5 mph in the afternoon.
Thursday Night
 
Clear, with a low around 49.
Friday
 
Sunny, with a high near 86.
Friday Night
 
Partly cloudy, with a low around 53.
Saturday
 
A 20 percent chance of showers. Partly sunny, with a high near 84.

 

Forecast from NOAA-NWS for Watertown TN.