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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.