Skip to main content.
National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 7:26 pm CDT Jun 9, 2026
 
Tonight

Tonight: A slight chance of showers and thunderstorms between 1am and 4am. Mostly cloudy, with a low around 71. South wind around 5 mph. Chance of precipitation is 20%.
Low: 71 °F		 Wednesday

Wednesday: Sunny, with a high near 91. Heat index values as high as 98. Southwest wind around 10 mph.
High: 91 °F		 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 73. South southwest wind around 5 mph.
Low: 73 °F		 Thursday

Thursday: Sunny, with a high near 92. Heat index values as high as 100. Southwest wind 5 to 10 mph.
High: 92 °F		 Thursday
Night
Thursday Night: Mostly clear, with a low around 74. South southwest wind around 5 mph.
Low: 74 °F		 Friday

Friday: A slight chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 89. South southwest wind 5 to 10 mph becoming west northwest in the afternoon. Chance of precipitation is 80%.
High: 89 °F		 Friday
Night
Friday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 66. Northwest wind around 5 mph becoming calm.
Low: 66 °F		 Saturday

Saturday: Mostly sunny, with a high near 86. Calm wind becoming northeast around 5 mph.
High: 86 °F		 Saturday
Night
Saturday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 66. Calm wind.
Low: 66 °F
Mostly Cloudy
then Slight
Chance
T-storms
 Sunny

 Mostly Clear

 Sunny

 Mostly Clear

 Slight Chance
T-storms then
T-storms
 Slight Chance
T-storms

 Mostly Sunny

 Partly Cloudy
then Slight
Chance
Showers

 

Tonight
 
 A slight chance of showers and thunderstorms between 1am and 4am. Mostly cloudy, with a low around 71. South wind around 5 mph. Chance of precipitation is 20%.
Wednesday
 
 Sunny, with a high near 91. Heat index values as high as 98. Southwest wind around 10 mph.
Wednesday Night
 
 Mostly clear, with a low around 73. South southwest wind around 5 mph.
Thursday
 
 Sunny, with a high near 92. Heat index values as high as 100. Southwest wind 5 to 10 mph.
Thursday Night
 
 Mostly clear, with a low around 74. South southwest wind around 5 mph.
Friday
 
 A slight chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 89. South southwest wind 5 to 10 mph becoming west northwest in the afternoon. Chance of precipitation is 80%.
Friday Night
 
 A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 66. Northwest wind around 5 mph becoming calm.
Saturday
 
 Mostly sunny, with a high near 86. Calm wind becoming northeast around 5 mph.
Saturday Night
 
 A 20 percent chance of showers after 1am. Partly cloudy, with a low around 66. Calm wind.
Sunday
 
 A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 86. Chance of precipitation is 60%.
Sunday Night
 
 Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 67. Chance of precipitation is 70%.
Monday
 
 Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 82. Chance of precipitation is 60%.
Monday Night
 
 A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Tuesday
 
 A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 80.

 

Forecast from NOAA-NWS for Watertown TN.