Skip to main content.
National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 1:31 am CDT Oct 19, 2026
 
Today

Today: Sunny, with a high near 70. Calm wind becoming north around 5 mph in the afternoon.
High: 70 °F		 Tonight

Tonight: Patchy fog before 3am, then patchy fog after 4am. Otherwise, mostly clear, with a low around 41. North wind around 5 mph becoming calm.
Low: 41 °F		 Tuesday

Tuesday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 72. Light east northeast wind becoming north northeast 5 to 10 mph in the afternoon.
High: 72 °F		 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 40. North northeast wind around 5 mph becoming calm in the evening.
Low: 40 °F		 Wednesday

Wednesday: Patchy fog before 8am. Otherwise, sunny, with a high near 74. Calm wind becoming north around 5 mph in the afternoon.
High: 74 °F		 Wednesday
Night
Wednesday Night: Patchy fog after 3am. Otherwise, clear, with a low around 42. North wind around 5 mph becoming calm in the evening.
Low: 42 °F		 Thursday

Thursday: Patchy fog before 9am. Otherwise, sunny, with a high near 73. Light northeast wind becoming north northeast 5 to 10 mph in the afternoon.
High: 73 °F		 Thursday
Night
Thursday Night: Clear, with a low around 42. Northeast wind around 5 mph.
Low: 42 °F		 Friday

Friday: Sunny, with a high near 75. East northeast wind around 5 mph.
High: 75 °F
Sunny
 Clear then
Patchy Fog
 Patchy Fog
then Sunny
 Mostly Clear
 Patchy Fog
then Sunny
 Clear then
Patchy Fog
 Patchy Fog
then Sunny
 Clear
 Sunny

 

Today
 
 Sunny, with a high near 70. Calm wind becoming north around 5 mph in the afternoon.
Tonight
 
 Patchy fog before 3am, then patchy fog after 4am. Otherwise, mostly clear, with a low around 41. North wind around 5 mph becoming calm.
Tuesday
 
 Patchy fog before 8am. Otherwise, mostly sunny, with a high near 72. Light east northeast wind becoming north northeast 5 to 10 mph in the afternoon.
Tuesday Night
 
 Mostly clear, with a low around 40. North northeast wind around 5 mph becoming calm in the evening.
Wednesday
 
 Patchy fog before 8am. Otherwise, sunny, with a high near 74. Calm wind becoming north around 5 mph in the afternoon.
Wednesday Night
 
 Patchy fog after 3am. Otherwise, clear, with a low around 42. North wind around 5 mph becoming calm in the evening.
Thursday
 
 Patchy fog before 9am. Otherwise, sunny, with a high near 73. Light northeast wind becoming north northeast 5 to 10 mph in the afternoon.
Thursday Night
 
 Clear, with a low around 42. Northeast wind around 5 mph.
Friday
 
 Sunny, with a high near 75. East northeast wind around 5 mph.
Friday Night
 
 Clear, with a low around 44.
Saturday
 
 Sunny, with a high near 75.
Saturday Night
 
 Mostly clear, with a low around 44.
Sunday
 
 Sunny, with a high near 75.

 

Forecast from NOAA-NWS for Watertown TN.