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National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 1:31 am CDT Apr 16, 2026
 
Overnight

Overnight: Partly cloudy, with a low around 63. South southwest wind 5 to 10 mph.
Low: 63 °F
Thursday

Thursday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm.  Partly sunny, with a high near 80. West southwest wind around 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
High: 80 °F
Thursday
Night
Thursday Night: A 50 percent chance of showers and thunderstorms, mainly before 10pm.  Partly cloudy, with a low around 58. Southwest wind around 5 mph becoming calm  in the evening.  New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Low: 58 °F
Friday

Friday: A 20 percent chance of showers after 1pm.  Mostly sunny, with a high near 85. Calm wind becoming south southwest around 5 mph in the afternoon.
High: 85 °F
Friday
Night
Friday Night: Partly cloudy, with a low around 66. South wind around 5 mph.
Low: 66 °F
Saturday

Saturday: A slight chance of showers, then showers likely and possibly a thunderstorm after 1pm.  Partly sunny, with a high near 82. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 60%.
High: 82 °F
Saturday
Night
Saturday Night: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a low around 43. North northwest wind around 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 70%.
Low: 43 °F
Sunday

Sunday: A 20 percent chance of showers before 1pm.  Sunny, with a high near 64. North wind around 10 mph, with gusts as high as 20 mph.
High: 64 °F
Sunday
Night
Sunday Night: Clear, with a low around 40. North northwest wind around 5 mph becoming northeast after midnight.
Low: 40 °F
Partly Cloudy

Slight Chance
T-storms then
Showers
Likely
Chance
T-storms then
Slight Chance
T-storms
Mostly Sunny
then Slight
Chance
Showers
Partly Cloudy

Slight Chance
Showers then
Showers
Likely
Showers
Likely

Slight Chance
Showers

Clear

 

Overnight
 
Partly cloudy, with a low around 63. South southwest wind 5 to 10 mph.
Thursday
 
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 80. West southwest wind around 10 mph, with gusts as high as 20 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
 
A 50 percent chance of showers and thunderstorms, mainly before 10pm. Partly cloudy, with a low around 58. Southwest wind around 5 mph becoming calm in the evening. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
 
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 85. Calm wind becoming south southwest around 5 mph in the afternoon.
Friday Night
 
Partly cloudy, with a low around 66. South wind around 5 mph.
Saturday
 
A slight chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 82. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Saturday Night
 
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 43. North northwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Sunday
 
A 20 percent chance of showers before 1pm. Sunny, with a high near 64. North wind around 10 mph, with gusts as high as 20 mph.
Sunday Night
 
Clear, with a low around 40. North northwest wind around 5 mph becoming northeast after midnight.
Monday
 
Sunny, with a high near 70.
Monday Night
 
Mostly clear, with a low around 45.
Tuesday
 
Mostly sunny, with a high near 76.
Tuesday Night
 
Partly cloudy, with a low around 52.
Wednesday
 
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 78.

 

Forecast from NOAA-NWS for Watertown TN.