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National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 7:16 pm CDT Jul 7, 2026
 
Overnight

Overnight: Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 68. Calm wind.
Low: 68 °F		 Wednesday

Wednesday: A chance of showers, then showers and thunderstorms likely after 10am. Areas of fog before 9am. Otherwise, partly sunny, with a high near 87. Calm wind becoming west southwest around 5 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
High: 87 °F		 Wednesday
Night
Wednesday Night: Showers and thunderstorms likely before 11pm, then a slight chance of showers and thunderstorms after 5am. Patchy fog between 2am and 3am. Otherwise, partly cloudy, with a low around 69. Calm wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Low: 69 °F		 Thursday

Thursday: A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 10am, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 89. Southwest wind around 5 mph. Chance of precipitation is 40%.
High: 89 °F		 Thursday
Night
Thursday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly clear, with a low around 72. South southwest wind around 5 mph. Chance of precipitation is 30%.
Low: 72 °F		 Friday

Friday: Showers and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. 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		 Saturday

Saturday: Showers and possibly a thunderstorm. High near 88. Southwest wind 5 to 10 mph. Chance of precipitation is 80%.
High: 88 °F		 Saturday
Night
Saturday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 70. South wind around 5 mph becoming calm. Chance of precipitation is 60%.
Low: 70 °F
Patchy Fog


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

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

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

 Showers
Likely

 

Overnight
 
 Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 68. Calm wind.
Wednesday
 
 A chance of showers, then showers and thunderstorms likely after 10am. Areas of fog before 9am. Otherwise, partly sunny, with a high near 87. Calm wind becoming west southwest around 5 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
 
 Showers and thunderstorms likely before 11pm, then a slight chance of showers and thunderstorms after 5am. Patchy fog between 2am and 3am. Otherwise, partly cloudy, with a low around 69. Calm wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
 
 A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 10am, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 89. Southwest wind around 5 mph. Chance of precipitation is 40%.
Thursday Night
 
 A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly clear, with a low around 72. South southwest wind around 5 mph. Chance of precipitation is 30%.
Friday
 
 Showers and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. 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 and possibly a thunderstorm. High near 88. Southwest wind 5 to 10 mph. Chance of precipitation is 80%.
Saturday Night
 
 Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 70. South wind around 5 mph becoming calm. Chance of precipitation is 60%.
Sunday
 
 Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 86. Chance of precipitation is 60%.
Sunday Night
 
 A 30 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 88.
Monday Night
 
 Mostly clear, with a low around 68.
Tuesday
 
 Sunny, with a high near 90.

 

Forecast from NOAA-NWS for Watertown TN.