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National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 5:57 pm CDT Aug 1, 2026
 
Tonight

Tonight: Partly cloudy, with a low around 67. Southwest wind around 5 mph.
Low: 67 °F		 Sunday

Sunday: A chance of showers and thunderstorms between 1pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Partly sunny, with a high near 81. Southwest wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
High: 81 °F		 Sunday
Night
Sunday Night: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and midnight. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 67. West wind around 5 mph becoming calm. Chance of precipitation is 40%.
Low: 67 °F		 Monday

Monday: A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 83. Calm wind becoming west northwest around 5 mph in the morning. Chance of precipitation is 60%.
High: 83 °F		 Monday
Night
Monday Night: Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 67. North wind around 5 mph becoming calm.
Low: 67 °F		 Tuesday

Tuesday: A chance of showers, then showers and thunderstorms likely after 10am. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 84. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 60%.
High: 84 °F		 Tuesday
Night
Tuesday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 67. Calm wind.
Low: 67 °F		 Wednesday

Wednesday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 87. Calm wind becoming west southwest around 5 mph.
High: 87 °F		 Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 69. Calm wind.
Low: 69 °F
Partly Cloudy


 Partly Sunny
then Showers
Likely

 Chance
Showers then
Patchy Fog

 Showers
Likely

 Patchy Fog


 Chance
T-storms and
Patchy Fog
then T-storms
Likely
 Slight Chance
T-storms

 Chance
T-storms

 Partly Cloudy

 

Tonight
 
 Partly cloudy, with a low around 67. Southwest wind around 5 mph.
Sunday
 
 A chance of showers and thunderstorms between 1pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Partly sunny, with a high near 81. Southwest wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
 
 A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and midnight. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 67. West wind around 5 mph becoming calm. Chance of precipitation is 40%.
Monday
 
 A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 83. Calm wind becoming west northwest around 5 mph in the morning. Chance of precipitation is 60%.
Monday Night
 
 Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 67. North wind around 5 mph becoming calm.
Tuesday
 
 A chance of showers, then showers and thunderstorms likely after 10am. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 84. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 60%.
Tuesday Night
 
 A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 67. Calm wind.
Wednesday
 
 A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 87. Calm wind becoming west southwest around 5 mph.
Wednesday Night
 
 Partly cloudy, with a low around 69. Calm wind.
Thursday
 
 A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89.
Thursday Night
 
 Partly cloudy, with a low around 71.
Friday
 
 A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
Friday Night
 
 Partly cloudy, with a low around 72.
Saturday
 
 A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.

 

Forecast from NOAA-NWS for Watertown TN.