Skip to main content.
National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 1:31 pm CDT Oct 18, 2026
 
This
Afternoon
This Afternoon: Sunny, with a high near 69. East northeast wind around 5 mph.
High: 69 °F		 Tonight

Tonight: Clear, with a low around 39. Calm wind.
Low: 39 °F		 Monday

Monday: Sunny, with a high near 70. Calm wind becoming north around 5 mph in the afternoon.
High: 70 °F		 Monday
Night
Monday Night: Patchy fog after 4am. Otherwise, clear, with a low around 39. North wind around 5 mph becoming calm.
Low: 39 °F		 Tuesday

Tuesday: Patchy fog before 8am. Otherwise, sunny, with a high near 73. Light northeast wind becoming north northeast 5 to 10 mph in the afternoon.
High: 73 °F		 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 41. North northeast wind around 5 mph becoming calm in the evening.
Low: 41 °F		 Wednesday

Wednesday: Patchy fog before 7am. Otherwise, sunny, with a high near 74. Calm wind becoming north around 5 mph in the afternoon.
High: 74 °F		 Wednesday
Night
Wednesday Night: Clear, with a low around 41. North wind around 5 mph becoming calm.
Low: 41 °F		 Thursday

Thursday: Sunny, with a high near 73. Light north northeast wind increasing to 5 to 10 mph in the afternoon.
High: 73 °F
Sunny
 Clear
 Sunny
 Clear then
Patchy Fog
 Patchy Fog
then Sunny
 Mostly Clear
 Patchy Fog
then Sunny
 Clear
 Sunny

 

This Afternoon
 
 Sunny, with a high near 69. East northeast wind around 5 mph.
Tonight
 
 Clear, with a low around 39. Calm wind.
Monday
 
 Sunny, with a high near 70. Calm wind becoming north around 5 mph in the afternoon.
Monday Night
 
 Patchy fog after 4am. Otherwise, clear, with a low around 39. North wind around 5 mph becoming calm.
Tuesday
 
 Patchy fog before 8am. Otherwise, sunny, with a high near 73. Light northeast wind becoming north northeast 5 to 10 mph in the afternoon.
Tuesday Night
 
 Mostly clear, with a low around 41. North northeast wind around 5 mph becoming calm in the evening.
Wednesday
 
 Patchy fog before 7am. Otherwise, sunny, with a high near 74. Calm wind becoming north around 5 mph in the afternoon.
Wednesday Night
 
 Clear, with a low around 41. North wind around 5 mph becoming calm.
Thursday
 
 Sunny, with a high near 73. Light north northeast wind increasing to 5 to 10 mph in the afternoon.
Thursday Night
 
 Clear, with a low around 42.
Friday
 
 Sunny, with a high near 74.
Friday Night
 
 Clear, with a low around 43.
Saturday
 
 Sunny, with a high near 76.

 

Forecast from NOAA-NWS for Watertown TN.