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National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 3:36 pm CDT Jul 11, 2026
 
Tonight

Tonight: Showers and thunderstorms, mainly before 2am. Low around 69. South southwest wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
Low: 69 °F		 Sunday

Sunday: Showers and thunderstorms likely before noon, then showers and possibly a thunderstorm between noon and 5pm, then showers and thunderstorms likely after 5pm. High near 82. South southwest wind 5 to 10 mph becoming west northwest in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
High: 82 °F		 Sunday
Night
Sunday Night: Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 68. North wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Low: 68 °F		 Monday

Monday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 82. North northeast wind around 5 mph. Chance of precipitation is 80%.
High: 82 °F		 Monday
Night
Monday Night: A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 68. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Low: 68 °F		 Tuesday

Tuesday: A slight chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 86. East southeast wind around 5 mph. Chance of precipitation is 60%.
High: 86 °F		 Tuesday
Night
Tuesday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 69. Southeast wind around 5 mph becoming calm.
Low: 69 °F		 Wednesday

Wednesday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. Calm wind becoming southwest around 5 mph.
High: 88 °F		 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 71. Calm wind.
Low: 71 °F
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Flood Watch
 

Tonight
 
 Showers and thunderstorms, mainly before 2am. Low around 69. South southwest wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
Sunday
 
 Showers and thunderstorms likely before noon, then showers and possibly a thunderstorm between noon and 5pm, then showers and thunderstorms likely after 5pm. High near 82. South southwest wind 5 to 10 mph becoming west northwest in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
 
 Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 68. North wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
 
 A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 82. North northeast wind around 5 mph. Chance of precipitation is 80%.
Monday Night
 
 A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 68. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Tuesday
 
 A slight chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 86. East southeast wind around 5 mph. Chance of precipitation is 60%.
Tuesday Night
 
 A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 69. Southeast wind around 5 mph becoming calm.
Wednesday
 
 A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. Calm wind becoming southwest around 5 mph.
Wednesday Night
 
 Mostly clear, with a low around 71. Calm wind.
Thursday
 
 A 40 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 90.
Thursday Night
 
 Mostly clear, with a low around 72.
Friday
 
 A 50 percent chance of showers and thunderstorms. Sunny, with a high near 89.
Friday Night
 
 A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 71.
Saturday
 
 A 20 percent chance of showers and thunderstorms. Sunny, with a high near 90.

 

Forecast from NOAA-NWS for Watertown TN.