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National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 6:16 pm CDT Sep 23, 2026
 
Tonight

Tonight: Mostly cloudy, with a low around 61. North wind around 5 mph becoming calm in the evening.
Low: 61 °F		 Thursday

Thursday: Patchy fog before 9am. Otherwise, cloudy, then gradual clearing during the afternoon, with a high near 79. Light north northeast wind increasing to 5 to 10 mph in the afternoon.
High: 79 °F		 Thursday
Night
Thursday Night: Partly cloudy, with a low around 58. North northeast wind around 5 mph becoming calm in the evening.
Low: 58 °F		 Friday

Friday: Mostly sunny, with a high near 79. North northeast wind 5 to 10 mph.
High: 79 °F		 Friday
Night
Friday Night: Mostly clear, with a low around 53. North northeast wind around 5 mph becoming calm after midnight.
Low: 53 °F		 Saturday

Saturday: Mostly sunny, with a high near 79. Calm wind becoming north northeast around 5 mph in the afternoon.
High: 79 °F		 Saturday
Night
Saturday Night: Mostly cloudy, with a low around 54. North northeast wind around 5 mph becoming calm.
Low: 54 °F		 Sunday

Sunday: Partly sunny, with a high near 80. Calm wind becoming north northeast around 5 mph in the afternoon.
High: 80 °F		 Sunday
Night
Sunday Night: Partly cloudy, with a low around 53. Northeast wind around 5 mph becoming calm.
Low: 53 °F
Mostly Cloudy

 Patchy Fog
then Mostly
Sunny
 Partly Cloudy

 Mostly Sunny

 Mostly Clear

 Mostly Sunny

 Mostly Cloudy

 Partly Sunny

 Partly Cloudy

 

Tonight
 
 Mostly cloudy, with a low around 61. North wind around 5 mph becoming calm in the evening.
Thursday
 
 Patchy fog before 9am. Otherwise, cloudy, then gradual clearing during the afternoon, with a high near 79. Light north northeast wind increasing to 5 to 10 mph in the afternoon.
Thursday Night
 
 Partly cloudy, with a low around 58. North northeast wind around 5 mph becoming calm in the evening.
Friday
 
 Mostly sunny, with a high near 79. North northeast wind 5 to 10 mph.
Friday Night
 
 Mostly clear, with a low around 53. North northeast wind around 5 mph becoming calm after midnight.
Saturday
 
 Mostly sunny, with a high near 79. 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.
Sunday
 
 Partly sunny, with a high near 80. Calm wind becoming north northeast around 5 mph in the afternoon.
Sunday Night
 
 Partly cloudy, with a low around 53. Northeast wind around 5 mph becoming calm.
Monday
 
 Sunny, with a high near 83.
Monday Night
 
 Mostly clear, with a low around 56.
Tuesday
 
 Sunny, with a high near 87.
Tuesday Night
 
 A 20 percent chance of showers. Partly cloudy, with a low around 64.
Wednesday
 
 A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.

 

Forecast from NOAA-NWS for Watertown TN.