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National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 6:21 pm CDT Jul 23, 2026
 
Tonight

Tonight: Partly cloudy, with a low around 63. North wind around 5 mph becoming calm in the evening.
Low: 63 °F		 Friday

Friday: Mostly sunny, with a high near 85. Calm wind becoming north northwest around 5 mph in the afternoon.
High: 85 °F		 Friday
Night
Friday Night: A slight chance of showers between 2am and 4am, then a slight chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 68. Calm wind. Chance of precipitation is 20%.
Low: 68 °F		 Saturday

Saturday: A chance of showers and thunderstorms before 7am, then showers likely and possibly a thunderstorm between 7am and 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 86. Calm wind becoming south southwest around 5 mph in the afternoon. Chance of precipitation is 60%.
High: 86 °F		 Saturday
Night
Saturday Night: A chance of showers and thunderstorms. Patchy fog before 3am, then patchy fog after 4am. Otherwise, mostly cloudy, with a low around 71. Calm wind. Chance of precipitation is 40%.
Low: 71 °F		 Sunday

Sunday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 90. Calm wind becoming northwest around 5 mph in the afternoon.
High: 90 °F		 Sunday
Night
Sunday Night: Mostly clear, with a low around 71. Calm wind.
Low: 71 °F		 Monday

Monday: Mostly sunny, with a high near 93. Calm wind becoming west southwest around 5 mph in the afternoon.
High: 93 °F		 Monday
Night
Monday Night: Mostly clear, with a low around 74. South southwest wind around 5 mph.
Low: 74 °F
Partly Cloudy


 Mostly Sunny


 Partly Cloudy
then Slight
Chance
T-storms
 Showers
Likely

 Chance
T-storms then
Chance
Showers and
Patchy Fog
 Patchy Fog
then Mostly
Sunny

 Mostly Clear


 Mostly Sunny


 Mostly Clear

 

Tonight
 
 Partly cloudy, with a low around 63. North wind around 5 mph becoming calm in the evening.
Friday
 
 Mostly sunny, with a high near 85. Calm wind becoming north northwest around 5 mph in the afternoon.
Friday Night
 
 A slight chance of showers between 2am and 4am, then a slight chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 68. Calm wind. Chance of precipitation is 20%.
Saturday
 
 A chance of showers and thunderstorms before 7am, then showers likely and possibly a thunderstorm between 7am and 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 86. Calm wind becoming south southwest around 5 mph in the afternoon. Chance of precipitation is 60%.
Saturday Night
 
 A chance of showers and thunderstorms. Patchy fog before 3am, then patchy fog after 4am. Otherwise, mostly cloudy, with a low around 71. Calm wind. Chance of precipitation is 40%.
Sunday
 
 Patchy fog before 8am. Otherwise, mostly sunny, with a high near 90. Calm wind becoming northwest around 5 mph in the afternoon.
Sunday Night
 
 Mostly clear, with a low around 71. Calm wind.
Monday
 
 Mostly sunny, with a high near 93. Calm wind becoming west southwest around 5 mph in the afternoon.
Monday Night
 
 Mostly clear, with a low around 74. South southwest wind around 5 mph.
Tuesday
 
 Sunny, with a high near 95.
Tuesday Night
 
 A 20 percent chance of showers. Partly cloudy, with a low around 73.
Wednesday
 
 A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Wednesday Night
 
 A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Thursday
 
 A 20 percent chance of showers and thunderstorms. Sunny, with a high near 89.

 

Forecast from NOAA-NWS for Watertown TN.