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National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 1:31 am CDT Oct 8, 2026
 
Overnight

Overnight: Clear, with a low around 55. Calm wind.
Low: 55 °F		 Thursday

Thursday: Patchy fog before 8am. Otherwise, sunny, with a high near 84. Light and variable wind becoming north northeast 5 to 10 mph in the afternoon.
High: 84 °F		 Thursday
Night
Thursday Night: Mostly clear, with a low around 54. East wind around 5 mph.
Low: 54 °F		 Friday

Friday: Sunny, with a high near 87. East wind 5 to 10 mph.
High: 87 °F		 Friday
Night
Friday Night: Partly cloudy, with a low around 60. Southeast wind around 5 mph becoming calm in the evening.
Low: 60 °F		 Saturday

Saturday: Showers, with thunderstorms also possible after 4pm. High near 75. East wind 5 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%.
High: 75 °F		 Saturday
Night
Saturday Night: Showers and possibly a thunderstorm. Low around 59. East southeast wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%.
Low: 59 °F		 Sunday

Sunday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers. Mostly cloudy, with a high near 73. Southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
High: 73 °F		 Sunday
Night
Sunday Night: A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 57. West southwest wind 5 to 10 mph.
Low: 57 °F
Clear

 Patchy Fog
then Sunny
 Mostly Clear

 Sunny

 Partly Cloudy

 Chance
Showers then
Showers
 Showers

 Showers
Likely
 Slight Chance
Showers

 

Overnight
 
 Clear, with a low around 55. Calm wind.
Thursday
 
 Patchy fog before 8am. Otherwise, sunny, with a high near 84. Light and variable wind becoming north northeast 5 to 10 mph in the afternoon.
Thursday Night
 
 Mostly clear, with a low around 54. East wind around 5 mph.
Friday
 
 Sunny, with a high near 87. East wind 5 to 10 mph.
Friday Night
 
 Partly cloudy, with a low around 60. Southeast wind around 5 mph becoming calm in the evening.
Saturday
 
 Showers, with thunderstorms also possible after 4pm. High near 75. East wind 5 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%.
Saturday Night
 
 Showers and possibly a thunderstorm. Low around 59. East southeast wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%.
Sunday
 
 Showers likely and possibly a thunderstorm before 1pm, then a chance of showers. Mostly cloudy, with a high near 73. Southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Sunday Night
 
 A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 57. West southwest wind 5 to 10 mph.
Columbus Day
 
 Mostly sunny, with a high near 81.
Monday Night
 
 Mostly clear, with a low around 57.
Tuesday
 
 Sunny, with a high near 82.
Tuesday Night
 
 A 20 percent chance of showers. Mostly clear, with a low around 52.
Wednesday
 
 Sunny, with a high near 77.

 

Forecast from NOAA-NWS for Watertown TN.