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

Overnight: Mostly clear, with a low around 41. Calm wind.
Low: 41 °F		 Friday

Friday: Patchy fog before 7am. Otherwise, sunny, with a high near 73. Calm wind becoming south southwest around 5 mph in the afternoon.
High: 73 °F		 Friday
Night
Friday Night: Mostly clear, with a low around 51. South wind around 5 mph.
Low: 51 °F		 Saturday

Saturday: Mostly sunny, with a high near 78. West wind 5 to 10 mph.
High: 78 °F		 Saturday
Night
Saturday Night: Patchy fog after 3am. Otherwise, partly cloudy, with a low around 54. Calm wind.
Low: 54 °F		 Sunday

Sunday: A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 81. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 30%.
High: 81 °F		 Sunday
Night
Sunday Night: A chance of showers and thunderstorms, then showers likely after 10pm. Mostly cloudy, with a low around 54. North wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Low: 54 °F		 Monday

Monday: Mostly sunny, with a high near 68. North wind 10 to 15 mph, with gusts as high as 20 mph.
High: 68 °F		 Monday
Night
Monday Night: Clear, with a low around 42. North wind 5 to 10 mph becoming light and variable in the evening.
Low: 42 °F
Mostly Clear

 Patchy Fog
then Sunny

 Mostly Clear

 Mostly Sunny

 Partly Cloudy
then Patchy
Fog
 Sunny then
Chance
T-storms
 Chance
T-storms then
Showers
Likely
 Mostly Sunny

 Clear

 

Overnight
 
 Mostly clear, with a low around 41. Calm wind.
Friday
 
 Patchy fog before 7am. Otherwise, sunny, with a high near 73. Calm wind becoming south southwest around 5 mph in the afternoon.
Friday Night
 
 Mostly clear, with a low around 51. South wind around 5 mph.
Saturday
 
 Mostly sunny, with a high near 78. West wind 5 to 10 mph.
Saturday Night
 
 Patchy fog after 3am. Otherwise, partly cloudy, with a low around 54. Calm wind.
Sunday
 
 A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 81. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 30%.
Sunday Night
 
 A chance of showers and thunderstorms, then showers likely after 10pm. Mostly cloudy, with a low around 54. North wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Monday
 
 Mostly sunny, with a high near 68. North wind 10 to 15 mph, with gusts as high as 20 mph.
Monday Night
 
 Clear, with a low around 42. North wind 5 to 10 mph becoming light and variable in the evening.
Tuesday
 
 Sunny, with a high near 72.
Tuesday Night
 
 Mostly clear, with a low around 53.
Wednesday
 
 Sunny, with a high near 77.
Wednesday Night
 
 Mostly clear, with a low around 49.
Thursday
 
 Sunny, with a high near 76.

 

Forecast from NOAA-NWS for Watertown TN.