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National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 1:31 am CDT Oct 11, 2026
 
Overnight

Overnight: A 30 percent chance of showers. Mostly cloudy, with a low around 57. Calm wind.
Low: 57 °F		 Sunday

Sunday: A 50 percent chance of showers, mainly before noon. Mostly cloudy, with a high near 71. West wind 5 to 10 mph, with gusts as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.
High: 71 °F		 Sunday
Night
Sunday Night: Mostly clear, with a low around 52. West southwest wind around 5 mph becoming calm.
Low: 52 °F		 Columbus
Day
Columbus Day: Patchy fog before 8am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 85. Calm wind becoming west around 5 mph in the afternoon.
High: 85 °F		 Monday
Night
Monday Night: Clear, with a low around 58. South wind around 5 mph.
Low: 58 °F		 Tuesday

Tuesday: Sunny, with a high near 87. Southwest wind 5 to 10 mph.
High: 87 °F		 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 61. South southwest wind around 5 mph.
Low: 61 °F		 Wednesday

Wednesday: Sunny, with a high near 88. Southwest wind around 5 mph.
High: 88 °F		 Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 62. South wind around 5 mph.
Low: 62 °F
Chance
Showers

 Chance
Showers then
Slight Chance
Showers
 Mostly Clear

 Patchy Fog
then Sunny

 Clear

 Sunny

 Mostly Clear

 Sunny

 Partly Cloudy

 

Overnight
 
 A 30 percent chance of showers. Mostly cloudy, with a low around 57. Calm wind.
Sunday
 
 A 50 percent chance of showers, mainly before noon. Mostly cloudy, with a high near 71. West wind 5 to 10 mph, with gusts as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
 
 Mostly clear, with a low around 52. West southwest wind around 5 mph becoming calm.
Columbus Day
 
 Patchy fog before 8am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 85. Calm wind becoming west around 5 mph in the afternoon.
Monday Night
 
 Clear, with a low around 58. South wind around 5 mph.
Tuesday
 
 Sunny, with a high near 87. Southwest wind 5 to 10 mph.
Tuesday Night
 
 Mostly clear, with a low around 61. South southwest wind around 5 mph.
Wednesday
 
 Sunny, with a high near 88. Southwest wind around 5 mph.
Wednesday Night
 
 Partly cloudy, with a low around 62. South wind around 5 mph.
Thursday
 
 Mostly sunny, with a high near 87.
Thursday Night
 
 Mostly clear, with a low around 60.
Friday
 
 A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 78.
Friday Night
 
 Partly cloudy, with a low around 46.
Saturday
 
 Mostly sunny, with a high near 65.

 

Forecast from NOAA-NWS for Watertown TN.