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National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 1:30 am CDT Jun 13, 2026
 
Overnight

Overnight: Patchy fog. Otherwise, mostly cloudy, with a low around 67. Calm wind.
Low: 67 °F		 Saturday

Saturday: A 20 percent chance of showers and thunderstorms after 4pm. Patchy fog before 7am. Otherwise, mostly sunny, with a high near 90. Heat index values as high as 97. Calm wind becoming west southwest around 5 mph.
High: 90 °F		 Saturday
Night
Saturday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Mostly cloudy, with a low around 71. Calm wind becoming southwest around 5 mph after midnight. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Low: 71 °F		 Sunday

Sunday: Showers and thunderstorms before 4pm, then showers and possibly a thunderstorm, mainly after 4pm. High near 84. South southwest wind 10 to 15 mph becoming west in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%.
High: 84 °F		 Sunday
Night
Sunday Night: Showers and possibly a thunderstorm before 7pm. Low around 59. West northwest wind 5 to 10 mph becoming light north northwest in the evening. Chance of precipitation is 80%.
Low: 59 °F		 Monday

Monday: Partly sunny, with a high near 77. Calm wind becoming north northwest around 5 mph in the afternoon.
High: 77 °F		 Monday
Night
Monday Night: Partly cloudy, with a low around 56. North northwest wind around 5 mph becoming calm.
Low: 56 °F		 Tuesday

Tuesday: Sunny, with a high near 81. Calm wind becoming west around 5 mph in the afternoon.
High: 81 °F		 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 60. Calm wind becoming south southwest around 5 mph after midnight.
Low: 60 °F
Patchy Fog

 Patchy Fog
then Slight
Chance
T-storms
 Chance
T-storms then
Showers
Likely
 Showers
Likely then
T-storms
 Showers then
Partly Cloudy

 Partly Sunny

 Partly Cloudy

 Sunny

 Mostly Clear

 

Overnight
 
 Patchy fog. Otherwise, mostly cloudy, with a low around 67. Calm wind.
Saturday
 
 A 20 percent chance of showers and thunderstorms after 4pm. Patchy fog before 7am. Otherwise, mostly sunny, with a high near 90. Heat index values as high as 97. Calm wind becoming west southwest around 5 mph.
Saturday Night
 
 A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Mostly cloudy, with a low around 71. Calm wind becoming southwest around 5 mph after midnight. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
 
 Showers and thunderstorms before 4pm, then showers and possibly a thunderstorm, mainly after 4pm. High near 84. South southwest wind 10 to 15 mph becoming west in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%.
Sunday Night
 
 Showers and possibly a thunderstorm before 7pm. Low around 59. West northwest wind 5 to 10 mph becoming light north northwest in the evening. Chance of precipitation is 80%.
Monday
 
 Partly sunny, with a high near 77. Calm wind becoming north northwest around 5 mph in the afternoon.
Monday Night
 
 Partly cloudy, with a low around 56. North northwest wind around 5 mph becoming calm.
Tuesday
 
 Sunny, with a high near 81. Calm wind becoming west around 5 mph in the afternoon.
Tuesday Night
 
 Mostly clear, with a low around 60. Calm wind becoming south southwest around 5 mph after midnight.
Wednesday
 
 A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 85.
Wednesday Night
 
 A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Thursday
 
 Showers and thunderstorms likely. Partly sunny, with a high near 87. Chance of precipitation is 70%.
Thursday Night
 
 Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 69. Chance of precipitation is 70%.
Juneteenth
 
 Showers and thunderstorms likely. Partly sunny, with a high near 83. Chance of precipitation is 70%.

 

Forecast from NOAA-NWS for Watertown TN.