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National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 6:21 pm CDT Aug 3, 2026
 
Tonight

Tonight: Mostly clear, with a low around 65. North northeast wind around 5 mph becoming calm.
Low: 65 °F		 Tuesday

Tuesday: Sunny, with a high near 87. North northeast wind around 5 mph.
High: 87 °F		 Tuesday
Night
Tuesday Night: Patchy fog after 2am. Otherwise, partly cloudy, with a low around 69. North northeast wind around 5 mph becoming calm.
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. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 87. Calm wind becoming southwest around 5 mph. Chance of precipitation is 60%.
High: 87 °F		 Wednesday
Night
Wednesday Night: Patchy fog between 11pm and midnight. Otherwise, partly cloudy, with a low around 70. Calm wind becoming south around 5 mph.
Low: 70 °F		 Thursday

Thursday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 89. South southwest wind around 5 mph.
High: 89 °F		 Thursday
Night
Thursday Night: Partly cloudy, with a low around 71. South wind around 5 mph.
Low: 71 °F		 Friday

Friday: A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. South southwest wind around 5 mph.
High: 89 °F		 Friday
Night
Friday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 70. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Low: 70 °F
Mostly Clear


 Sunny


 Partly Cloudy
then Patchy
Fog

 Slight Chance
T-storms and
Patchy Fog
then Showers
Likely
 Patchy Fog
then Mostly
Clear

 Sunny then
Slight Chance
T-storms

 Partly Cloudy


 Mostly Sunny
then Chance
T-storms

 Chance
T-storms

 

Tonight
 
 Mostly clear, with a low around 65. North northeast wind around 5 mph becoming calm.
Tuesday
 
 Sunny, with a high near 87. North northeast wind around 5 mph.
Tuesday Night
 
 Patchy fog after 2am. Otherwise, partly cloudy, with a low around 69. North northeast wind around 5 mph becoming calm.
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. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 87. Calm wind becoming southwest around 5 mph. Chance of precipitation is 60%.
Wednesday Night
 
 Patchy fog between 11pm and midnight. Otherwise, partly cloudy, with a low around 70. Calm wind becoming south around 5 mph.
Thursday
 
 A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 89. South southwest wind around 5 mph.
Thursday Night
 
 Partly cloudy, with a low around 71. South wind around 5 mph.
Friday
 
 A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. South southwest wind around 5 mph.
Friday Night
 
 A chance of showers and thunderstorms. Partly cloudy, with a low around 70. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Saturday
 
 A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 88.
Saturday Night
 
 A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Sunday
 
 A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Sunday Night
 
 A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Monday
 
 A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.

 

Forecast from NOAA-NWS for Watertown TN.