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National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 5:01 pm CDT Jul 31, 2026
 
Tonight

Tonight: Showers and thunderstorms likely, mainly before midnight. Mostly cloudy, with a low around 71. Light and variable wind becoming south 5 to 10 mph after midnight. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Low: 71 °F		 Saturday

Saturday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2pm. High near 87. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
High: 87 °F		 Saturday
Night
Saturday Night: Showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and midnight. Low around 68. South southwest wind 5 to 10 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Low: 68 °F		 Sunday

Sunday: Showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 82. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
High: 82 °F		 Sunday
Night
Sunday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Mostly cloudy, with a low around 66. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Low: 66 °F		 Monday

Monday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 83. Calm wind becoming west northwest around 5 mph in the morning. Chance of precipitation is 50%.
High: 83 °F		 Monday
Night
Monday Night: Mostly clear, with a low around 66. North northwest wind around 5 mph becoming calm.
Low: 66 °F		 Tuesday

Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86. Calm wind becoming west around 5 mph in the morning. Chance of precipitation is 30%.
High: 86 °F		 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 67. Calm wind.
Low: 67 °F
Showers
Likely then
Chance
Showers
 Showers
Likely then
T-storms
 Showers then
Partly Cloudy

 Partly Sunny
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Likely
 Chance
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 Slight Chance
Showers then
Chance
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 Mostly Clear

 Chance
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 Mostly Clear

 

Tonight
 
 Showers and thunderstorms likely, mainly before midnight. Mostly cloudy, with a low around 71. Light and variable wind becoming south 5 to 10 mph after midnight. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
 
 Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2pm. High near 87. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
 
 Showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and midnight. Low around 68. South southwest wind 5 to 10 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
 
 Showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 82. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Sunday Night
 
 A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Mostly cloudy, with a low around 66. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Monday
 
 A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 83. Calm wind becoming west northwest around 5 mph in the morning. Chance of precipitation is 50%.
Monday Night
 
 Mostly clear, with a low around 66. North northwest wind around 5 mph becoming calm.
Tuesday
 
 A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86. Calm wind becoming west around 5 mph in the morning. Chance of precipitation is 30%.
Tuesday Night
 
 Mostly clear, with a low around 67. Calm wind.
Wednesday
 
 A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. Chance of precipitation is 30%.
Wednesday Night
 
 Mostly clear, with a low around 69.
Thursday
 
 A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Thursday Night
 
 Partly cloudy, with a low around 71.
Friday
 
 A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.

 

Forecast from NOAA-NWS for Watertown TN.