Skip to main content.
National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 7:16 am CDT Aug 21, 2026
 
This
Afternoon
This Afternoon: Mostly sunny, with a high near 87. North northwest wind around 5 mph.
High: 87 °F		 Tonight

Tonight: Patchy fog after 1am. Otherwise, mostly clear, with a low around 67. Calm wind.
Low: 67 °F		 Saturday

Saturday: Areas of fog before 9am. Otherwise, mostly sunny, with a high near 89. Light and variable wind becoming northwest 5 to 10 mph in the afternoon.
High: 89 °F		 Saturday
Night
Saturday Night: Mostly clear, with a low around 65. Northwest wind around 5 mph becoming calm in the evening.
Low: 65 °F		 Sunday

Sunday: Patchy fog before 8am. Otherwise, sunny, with a high near 86. Calm wind becoming north northwest around 5 mph in the afternoon.
High: 86 °F		 Sunday
Night
Sunday Night: Partly cloudy, with a low around 63. North wind around 5 mph becoming calm.
Low: 63 °F		 Monday

Monday: Mostly sunny, with a high near 86. Calm wind becoming west northwest around 5 mph.
High: 86 °F		 Monday
Night
Monday Night: A slight chance of showers, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 63. Calm wind. Chance of precipitation is 30%.
Low: 63 °F		 Tuesday

Tuesday: A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 85. Calm wind becoming south southwest around 5 mph.
High: 85 °F
Mostly Sunny

 Mostly Clear
then Patchy
Fog
 Areas Fog
then Mostly
Sunny
 Mostly Clear

 Patchy Fog
then Sunny
 Partly Cloudy

 Mostly Sunny

 Chance
Showers
 Chance
T-storms

 

This Afternoon
 
 Mostly sunny, with a high near 87. North northwest wind around 5 mph.
Tonight
 
 Patchy fog after 1am. Otherwise, mostly clear, with a low around 67. Calm wind.
Saturday
 
 Areas of fog before 9am. Otherwise, mostly sunny, with a high near 89. Light and variable wind becoming northwest 5 to 10 mph in the afternoon.
Saturday Night
 
 Mostly clear, with a low around 65. Northwest wind around 5 mph becoming calm in the evening.
Sunday
 
 Patchy fog before 8am. Otherwise, sunny, with a high near 86. Calm wind becoming north northwest around 5 mph in the afternoon.
Sunday Night
 
 Partly cloudy, with a low around 63. North wind around 5 mph becoming calm.
Monday
 
 Mostly sunny, with a high near 86. Calm wind becoming west northwest around 5 mph.
Monday Night
 
 A slight chance of showers, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 63. Calm wind. Chance of precipitation is 30%.
Tuesday
 
 A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 85. Calm wind becoming south southwest around 5 mph.
Tuesday Night
 
 A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 66.
Wednesday
 
 A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Wednesday Night
 
 A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.
Thursday
 
 A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.

 

Forecast from NOAA-NWS for Watertown TN.