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National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 6:16 pm CDT Aug 27, 2026
 
Tonight

Tonight: Patchy fog after 1am. Otherwise, mostly clear, with a low around 66. Calm wind.
Low: 66 °F		 Friday

Friday: Patchy fog before 9am. Otherwise, sunny, with a high near 88. Calm wind becoming north around 5 mph in the afternoon.
High: 88 °F		 Friday
Night
Friday Night: Patchy fog after 5am. Otherwise, mostly clear, with a low around 64. North wind around 5 mph becoming calm in the evening.
Low: 64 °F		 Saturday

Saturday: Patchy fog between 8am and 9am. Otherwise, sunny, with a high near 90. Calm wind.
High: 90 °F		 Saturday
Night
Saturday Night: Mostly clear, with a low around 68. Calm wind.
Low: 68 °F		 Sunday

Sunday: Sunny, with a high near 91. South wind around 5 mph.
High: 91 °F		 Sunday
Night
Sunday Night: Mostly clear, with a low around 70. Calm wind becoming south southeast around 5 mph.
Low: 70 °F		 Monday

Monday: Sunny, with a high near 92. South southwest wind around 5 mph.
High: 92 °F		 Monday
Night
Monday Night: Mostly clear, with a low around 71. Calm wind becoming south southeast around 5 mph.
Low: 71 °F
Mostly Clear
then Patchy
Fog
 Patchy Fog
then Sunny
 Mostly Clear
then Patchy
Fog
 Patchy Fog
then Sunny
 Mostly Clear

 Sunny

 Mostly Clear

 Sunny

 Mostly Clear

 

Tonight
 
 Patchy fog after 1am. Otherwise, mostly clear, with a low around 66. Calm wind.
Friday
 
 Patchy fog before 9am. Otherwise, sunny, with a high near 88. Calm wind becoming north around 5 mph in the afternoon.
Friday Night
 
 Patchy fog after 5am. Otherwise, mostly clear, with a low around 64. North wind around 5 mph becoming calm in the evening.
Saturday
 
 Patchy fog between 8am and 9am. Otherwise, sunny, with a high near 90. Calm wind.
Saturday Night
 
 Mostly clear, with a low around 68. Calm wind.
Sunday
 
 Sunny, with a high near 91. South wind around 5 mph.
Sunday Night
 
 Mostly clear, with a low around 70. Calm wind becoming south southeast around 5 mph.
Monday
 
 Sunny, with a high near 92. South southwest wind around 5 mph.
Monday Night
 
 Mostly clear, with a low around 71. Calm wind becoming south southeast around 5 mph.
Tuesday
 
 Sunny, with a high near 93.
Tuesday Night
 
 Mostly clear, with a low around 72.
Wednesday
 
 A 20 percent chance of showers and thunderstorms. Sunny, with a high near 93.
Wednesday Night
 
 Mostly clear, with a low around 73.
Thursday
 
 Sunny, with a high near 94.

 

Forecast from NOAA-NWS for Watertown TN.