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National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 7:36 pm CDT Jul 6, 2026
 
Tonight

Tonight: Patchy fog before 1am, then patchy fog after 2am.  Otherwise, partly cloudy, with a low around 69. Calm wind.
Low: 69 °F
Tuesday

Tuesday: Showers and thunderstorms likely, mainly between 2pm and 4pm.  Areas of fog before 9am.  Otherwise, partly sunny, with a high near 86. Calm wind becoming west northwest around 5 mph in the afternoon.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
High: 86 °F
Tuesday
Night
Tuesday Night: A chance of showers and thunderstorms before 4am, then a slight chance of showers between 4am and 5am.  Patchy fog after 11pm.  Otherwise, partly cloudy, with a low around 69. Calm wind.  Chance of precipitation is 30%.
Low: 69 °F
Wednesday

Wednesday: 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.  Areas of fog before 8am.  Otherwise, mostly sunny, with a high near 88. Calm wind becoming west southwest around 5 mph in the afternoon.  Chance of precipitation is 60%.
High: 88 °F
Wednesday
Night
Wednesday Night: A 30 percent chance of showers and thunderstorms before 1am.  Patchy fog between 1am and 2am.  Otherwise, partly cloudy, with a low around 69. West southwest wind around 5 mph becoming calm.
Low: 69 °F
Thursday

Thursday: A chance of showers, with thunderstorms also possible after 10am.  Mostly sunny, with a high near 90. Southwest wind 5 to 10 mph.  Chance of precipitation is 50%.
High: 90 °F
Thursday
Night
Thursday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am.  Mostly clear, with a low around 72. South southwest wind around 5 mph.
Low: 72 °F
Friday

Friday: Showers and possibly a thunderstorm.  High near 90. Southwest wind around 10 mph.  Chance of precipitation is 80%.
High: 90 °F
Friday
Night
Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am.  Partly cloudy, with a low around 71. South southwest wind around 5 mph.  Chance of precipitation is 60%.
Low: 71 °F
Patchy Fog


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

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

Slight Chance
T-storms then
Chance
Showers
Showers
Likely then
T-storms

Chance
T-storms then
Showers
Likely

 

Tonight
 
Patchy fog before 1am, then patchy fog after 2am. Otherwise, partly cloudy, with a low around 69. Calm wind.
Tuesday
 
Showers and thunderstorms likely, mainly between 2pm and 4pm. Areas of fog before 9am. Otherwise, partly sunny, with a high near 86. Calm wind becoming west northwest around 5 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
 
A chance of showers and thunderstorms before 4am, then a slight chance of showers between 4am and 5am. Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 69. Calm wind. Chance of precipitation is 30%.
Wednesday
 
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. Areas of fog before 8am. Otherwise, mostly sunny, with a high near 88. Calm wind becoming west southwest around 5 mph in the afternoon. Chance of precipitation is 60%.
Wednesday Night
 
A 30 percent chance of showers and thunderstorms before 1am. Patchy fog between 1am and 2am. Otherwise, partly cloudy, with a low around 69. West southwest wind around 5 mph becoming calm.
Thursday
 
A chance of showers, with thunderstorms also possible after 10am. Mostly sunny, with a high near 90. Southwest wind 5 to 10 mph. Chance of precipitation is 50%.
Thursday Night
 
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly clear, with a low around 72. South southwest wind around 5 mph.
Friday
 
Showers and possibly a thunderstorm. High near 90. Southwest wind around 10 mph. Chance of precipitation is 80%.
Friday Night
 
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 71. South southwest wind around 5 mph. Chance of precipitation is 60%.
Saturday
 
Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 87. Chance of precipitation is 70%.
Saturday Night
 
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 70. Chance of precipitation is 60%.
Sunday
 
Showers and thunderstorms likely. Partly sunny, with a high near 88. Chance of precipitation is 60%.
Sunday Night
 
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Monday
 
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.

 

Forecast from NOAA-NWS for Watertown TN.