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National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 1:31 am CDT Jun 18, 2026
 
Overnight

Overnight: Mostly cloudy, with a low around 74. South southwest wind around 15 mph, with gusts as high as 25 mph.
Low: 74 °F		 Thursday

Thursday: A chance of showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 1pm, then showers and thunderstorms likely after 1pm. Partly sunny, with a high near 86. South southwest wind 10 to 15 mph, with gusts as high as 25 mph. 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		 Thursday
Night
Thursday Night: Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 3am. Patchy fog between 2am and 3am. Otherwise, mostly cloudy, with a low around 67. South southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Low: 67 °F		 Juneteenth

Juneteenth: Mostly sunny, with a high near 83. North wind 5 to 10 mph.
High: 83 °F		 Friday
Night
Friday Night: Patchy fog after 4am. Otherwise, partly cloudy, with a low around 61. North wind around 5 mph becoming calm.
Low: 61 °F		 Saturday

Saturday: Mostly sunny, with a high near 86. Calm wind becoming east southeast around 5 mph.
High: 86 °F		 Saturday
Night
Saturday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66. Calm wind.
Low: 66 °F		 Sunday

Sunday: Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 86. South southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
High: 86 °F		 Sunday
Night
Sunday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 69. South southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Low: 69 °F
Mostly Cloudy


 T-storms
Likely

 Showers
Likely then
Slight Chance
Showers and
Patchy Fog
 Mostly Sunny


 Partly Cloudy
then Patchy
Fog

 Mostly Sunny


 Slight Chance
T-storms

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

 

Overnight
 
 Mostly cloudy, with a low around 74. South southwest wind around 15 mph, with gusts as high as 25 mph.
Thursday
 
 A chance of showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 1pm, then showers and thunderstorms likely after 1pm. Partly sunny, with a high near 86. South southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
 
 Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 3am. Patchy fog between 2am and 3am. Otherwise, mostly cloudy, with a low around 67. South southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Juneteenth
 
 Mostly sunny, with a high near 83. North wind 5 to 10 mph.
Friday Night
 
 Patchy fog after 4am. Otherwise, partly cloudy, with a low around 61. North wind around 5 mph becoming calm.
Saturday
 
 Mostly sunny, with a high near 86. Calm wind becoming east southeast around 5 mph.
Saturday Night
 
 A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66. Calm wind.
Sunday
 
 Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 86. South southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Sunday Night
 
 A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 69. South southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Monday
 
 Showers and possibly a thunderstorm. High near 81. Chance of precipitation is 90%.
Monday Night
 
 A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Tuesday
 
 Partly sunny, with a high near 82.
Tuesday Night
 
 Partly cloudy, with a low around 63.
Wednesday
 
 A 20 percent chance of showers. Mostly sunny, with a high near 84.

 

Forecast from NOAA-NWS for Watertown TN.