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National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 2:26 pm CDT Oct 19, 2026
 
This
Afternoon
This Afternoon: Sunny, with a high near 70. North wind around 5 mph.
High: 70 °F		 Tonight

Tonight: Patchy fog after midnight. Otherwise, mostly clear, with a low around 43. Calm wind.
Low: 43 °F		 Tuesday

Tuesday: Patchy fog before 8am. Otherwise, mostly cloudy, then becoming sunny during the afternoon, with a high near 75. Light northeast wind becoming north northeast 5 to 10 mph in the afternoon.
High: 75 °F		 Tuesday
Night
Tuesday Night: Patchy fog after 3am. Otherwise, mostly clear, with a low around 42. North northeast wind around 5 mph becoming calm in the evening.
Low: 42 °F		 Wednesday

Wednesday: Patchy fog before 9am. Otherwise, sunny, with a high near 75. Calm wind becoming north around 5 mph in the afternoon.
High: 75 °F		 Wednesday
Night
Wednesday Night: Patchy fog after 1am. Otherwise, clear, with a low around 44. North northeast wind around 5 mph becoming calm.
Low: 44 °F		 Thursday

Thursday: Patchy fog before 9am. Otherwise, sunny, with a high near 74. Light northeast wind becoming north northeast 5 to 10 mph in the afternoon.
High: 74 °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
then Patchy
Fog
 Patchy Fog
then Sunny
 Clear then
Patchy Fog
 Patchy Fog
then Sunny
 Clear

 Sunny

 

This Afternoon
 
 Sunny, with a high near 70. North wind around 5 mph.
Tonight
 
 Patchy fog after midnight. Otherwise, mostly clear, with a low around 43. Calm wind.
Tuesday
 
 Patchy fog before 8am. Otherwise, mostly cloudy, then becoming sunny during the afternoon, with a high near 75. Light northeast wind becoming north northeast 5 to 10 mph in the afternoon.
Tuesday Night
 
 Patchy fog after 3am. Otherwise, mostly clear, with a low around 42. North northeast wind around 5 mph becoming calm in the evening.
Wednesday
 
 Patchy fog before 9am. Otherwise, sunny, with a high near 75. Calm wind becoming north around 5 mph in the afternoon.
Wednesday Night
 
 Patchy fog after 1am. Otherwise, clear, with a low around 44. North northeast wind around 5 mph becoming calm.
Thursday
 
 Patchy fog before 9am. Otherwise, sunny, with a high near 74. 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.