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National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 1:31 pm CDT Oct 11, 2026
 
Tonight

Tonight: Mostly clear, with a low around 51. West wind around 5 mph becoming calm in the evening.
Low: 51 °F		 Columbus
Day
Columbus Day: Patchy fog before 8am. Otherwise, sunny, with a high near 85. Calm wind becoming west around 5 mph in the afternoon.
High: 85 °F		 Monday
Night
Monday Night: Clear, with a low around 58. South wind around 5 mph.
Low: 58 °F		 Tuesday

Tuesday: Sunny, with a high near 87. Southwest wind 5 to 10 mph.
High: 87 °F		 Tuesday
Night
Tuesday Night: Clear, with a low around 60. South wind around 5 mph.
Low: 60 °F		 Wednesday

Wednesday: Sunny, with a high near 88. Southwest wind around 5 mph.
High: 88 °F		 Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 63. Calm wind becoming south southwest around 5 mph.
Low: 63 °F		 Thursday

Thursday: Mostly sunny, with a high near 87. Light south wind becoming southwest 5 to 10 mph in the afternoon.
High: 87 °F		 Thursday
Night
Thursday Night: Mostly clear, with a low around 62. South wind around 5 mph.
Low: 62 °F
Mostly Clear
 Patchy Fog
then Sunny
 Clear
 Sunny
 Clear
 Sunny
 Partly Cloudy
 Mostly Sunny
 Mostly Clear

 

Tonight
 
 Mostly clear, with a low around 51. West wind around 5 mph becoming calm in the evening.
Columbus Day
 
 Patchy fog before 8am. Otherwise, sunny, with a high near 85. Calm wind becoming west around 5 mph in the afternoon.
Monday Night
 
 Clear, with a low around 58. South wind around 5 mph.
Tuesday
 
 Sunny, with a high near 87. Southwest wind 5 to 10 mph.
Tuesday Night
 
 Clear, with a low around 60. South wind around 5 mph.
Wednesday
 
 Sunny, with a high near 88. Southwest wind around 5 mph.
Wednesday Night
 
 Partly cloudy, with a low around 63. Calm wind becoming south southwest around 5 mph.
Thursday
 
 Mostly sunny, with a high near 87. Light south wind becoming southwest 5 to 10 mph in the afternoon.
Thursday Night
 
 Mostly clear, with a low around 62. South wind around 5 mph.
Friday
 
 Mostly sunny, with a high near 78.
Friday Night
 
 Partly cloudy, with a low around 42.
Saturday
 
 Mostly sunny, with a high near 62.
Saturday Night
 
 Mostly clear, with a low around 36.
Sunday
 
 Sunny, with a high near 69.

 

Forecast from NOAA-NWS for Watertown TN.