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National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 1:31 am CDT Sep 23, 2026
 
Today

Today: Partly sunny, with a high near 79. Light north wind increasing to 5 to 10 mph in the afternoon.
High: 79 °F		 Tonight

Tonight: Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 61. North wind 5 to 10 mph becoming light in the evening.
Low: 61 °F		 Thursday

Thursday: Patchy fog before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 82. Light north northeast wind increasing to 5 to 10 mph in the afternoon.
High: 82 °F		 Thursday
Night
Thursday Night: Partly cloudy, with a low around 59. Northeast wind around 5 mph.
Low: 59 °F		 Friday

Friday: Mostly sunny, with a high near 81. North northeast wind 5 to 10 mph.
High: 81 °F		 Friday
Night
Friday Night: Mostly clear, with a low around 51. North northeast wind 5 to 10 mph becoming light northeast after midnight.
Low: 51 °F		 Saturday

Saturday: Mostly sunny, with a high near 81. Calm wind becoming north northeast around 5 mph in the afternoon.
High: 81 °F		 Saturday
Night
Saturday Night: Mostly cloudy, with a low around 54. North northeast wind around 5 mph becoming calm in the evening.
Low: 54 °F		 Sunday

Sunday: Mostly sunny, with a high near 82. Calm wind becoming north northeast around 5 mph in the afternoon.
High: 82 °F
Partly Sunny

 Mostly Cloudy
then Patchy
Fog
 Patchy Fog
then Mostly
Sunny
 Partly Cloudy

 Mostly Sunny

 Mostly Clear

 Mostly Sunny

 Mostly Cloudy

 Mostly Sunny

 

Today
 
 Partly sunny, with a high near 79. Light north wind increasing to 5 to 10 mph in the afternoon.
Tonight
 
 Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 61. North wind 5 to 10 mph becoming light in the evening.
Thursday
 
 Patchy fog before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 82. Light north northeast wind increasing to 5 to 10 mph in the afternoon.
Thursday Night
 
 Partly cloudy, with a low around 59. Northeast wind around 5 mph.
Friday
 
 Mostly sunny, with a high near 81. North northeast wind 5 to 10 mph.
Friday Night
 
 Mostly clear, with a low around 51. North northeast wind 5 to 10 mph becoming light northeast after midnight.
Saturday
 
 Mostly sunny, with a high near 81. Calm wind becoming north northeast around 5 mph in the afternoon.
Saturday Night
 
 Mostly cloudy, with a low around 54. North northeast wind around 5 mph becoming calm in the evening.
Sunday
 
 Mostly sunny, with a high near 82. Calm wind becoming north northeast around 5 mph in the afternoon.
Sunday Night
 
 Partly cloudy, with a low around 53.
Monday
 
 Sunny, with a high near 85.
Monday Night
 
 Mostly clear, with a low around 56.
Tuesday
 
 Sunny, with a high near 89.

 

Forecast from NOAA-NWS for Watertown TN.