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National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 12:31 pm CDT Jul 14, 2025
 
This
Afternoon
This Afternoon: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. Heat index values as high as 97. West wind around 5 mph.
High: 90 °F		 Tonight

Tonight: A chance of showers and thunderstorms before 8pm, then a slight chance of showers and thunderstorms after 4am. Patchy fog after midnight. Otherwise, partly cloudy, with a low around 71. Calm wind. Chance of precipitation is 30%.
Low: 71 °F		 Tuesday

Tuesday: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 93. Heat index values as high as 101. Calm wind becoming southwest around 5 mph in the afternoon.
High: 93 °F		 Tuesday
Night
Tuesday Night: Partly cloudy, with a low around 72. Calm wind.
Low: 72 °F		 Wednesday

Wednesday: A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 93. Southwest wind around 5 mph.
High: 93 °F		 Wednesday
Night
Wednesday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 73. South southwest wind around 5 mph becoming calm.
Low: 73 °F		 Thursday

Thursday: A chance of showers, then showers and thunderstorms likely after 10am. Mostly sunny, with a high near 92. South southwest wind around 5 mph. Chance of precipitation is 60%.
High: 92 °F		 Thursday
Night
Thursday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 72. South southwest wind around 5 mph becoming calm.
Low: 72 °F		 Friday

Friday: Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 91. South southwest wind around 5 mph. Chance of precipitation is 60%.
High: 91 °F
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This Afternoon
 
 A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. Heat index values as high as 97. West wind around 5 mph.
Tonight
 
 A chance of showers and thunderstorms before 8pm, then a slight chance of showers and thunderstorms after 4am. Patchy fog after midnight. Otherwise, partly cloudy, with a low around 71. Calm wind. Chance of precipitation is 30%.
Tuesday
 
 A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 93. Heat index values as high as 101. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night
 
 Partly cloudy, with a low around 72. Calm wind.
Wednesday
 
 A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 93. Southwest wind around 5 mph.
Wednesday Night
 
 A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 73. South southwest wind around 5 mph becoming calm.
Thursday
 
 A chance of showers, then showers and thunderstorms likely after 10am. Mostly sunny, with a high near 92. South southwest wind around 5 mph. Chance of precipitation is 60%.
Thursday Night
 
 A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 72. South southwest wind around 5 mph becoming calm.
Friday
 
 Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 91. South southwest wind around 5 mph. Chance of precipitation is 60%.
Friday Night
 
 A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 72.
Saturday
 
 Showers and thunderstorms likely. Partly sunny, with a high near 91. Chance of precipitation is 60%.
Saturday Night
 
 Mostly cloudy, with a low around 72.
Sunday
 
 A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.

 

Forecast from NOAA-NWS for Watertown TN.