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National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 10:26 pm CDT Sep 25, 2026
 
Tonight

Tonight: Mostly clear, with a low around 52. Northeast wind around 5 mph becoming calm after midnight.
Low: 52 °F		 Saturday

Saturday: Mostly sunny, with a high near 78. North northeast wind around 5 mph.
High: 78 °F		 Saturday
Night
Saturday Night: Partly cloudy, with a low around 50. North northeast wind around 5 mph becoming calm in the evening.
Low: 50 °F		 Sunday

Sunday: Mostly sunny, with a high near 78. Light northeast wind becoming north 5 to 10 mph in the morning.
High: 78 °F		 Sunday
Night
Sunday Night: Patchy fog after 5am. Otherwise, mostly clear, with a low around 47. North wind around 5 mph becoming calm in the evening.
Low: 47 °F		 Monday

Monday: Patchy fog before 8am. Otherwise, sunny, with a high near 80. Calm wind becoming north northeast around 5 mph in the afternoon.
High: 80 °F		 Monday
Night
Monday Night: Patchy fog after 5am. Otherwise, mostly clear, with a low around 51. Northeast wind around 5 mph becoming calm.
Low: 51 °F		 Tuesday

Tuesday: Patchy fog before 7am. Otherwise, sunny, with a high near 85. Calm wind.
High: 85 °F		 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 59. Calm wind becoming east southeast around 5 mph.
Low: 59 °F
Mostly Clear

 Mostly Sunny

 Partly Cloudy

 Mostly Sunny

 Mostly Clear
then Patchy
Fog
 Patchy Fog
then Sunny
 Mostly Clear
then Patchy
Fog
 Patchy Fog
then Sunny
 Mostly Clear

 

Tonight
 
 Mostly clear, with a low around 52. Northeast wind around 5 mph becoming calm after midnight.
Saturday
 
 Mostly sunny, with a high near 78. North northeast wind around 5 mph.
Saturday Night
 
 Partly cloudy, with a low around 50. North northeast wind around 5 mph becoming calm in the evening.
Sunday
 
 Mostly sunny, with a high near 78. Light northeast wind becoming north 5 to 10 mph in the morning.
Sunday Night
 
 Patchy fog after 5am. Otherwise, mostly clear, with a low around 47. North wind around 5 mph becoming calm in the evening.
Monday
 
 Patchy fog before 8am. Otherwise, sunny, with a high near 80. Calm wind becoming north northeast around 5 mph in the afternoon.
Monday Night
 
 Patchy fog after 5am. Otherwise, mostly clear, with a low around 51. Northeast wind around 5 mph becoming calm.
Tuesday
 
 Patchy fog before 7am. Otherwise, sunny, with a high near 85. Calm wind.
Tuesday Night
 
 Mostly clear, with a low around 59. Calm wind becoming east southeast around 5 mph.
Wednesday
 
 Mostly sunny, with a high near 88.
Wednesday Night
 
 A 20 percent chance of showers. Partly cloudy, with a low around 66.
Thursday
 
 A 30 percent chance of showers. Mostly sunny, with a high near 86.
Thursday Night
 
 A 30 percent chance of showers. Partly cloudy, with a low around 66.
Friday
 
 A 40 percent chance of showers. Partly sunny, with a high near 86.

 

Forecast from NOAA-NWS for Watertown TN.