Skip to main content.
National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 6:16 pm CDT Aug 25, 2026
 
Tonight

Tonight: Mostly clear, with a low around 64. Calm wind.
Low: 64 °F		 Wednesday

Wednesday: Mostly sunny, with a high near 91. Calm wind becoming west around 5 mph.
High: 91 °F		 Wednesday
Night
Wednesday Night: A slight chance of thunderstorms after 5am. Partly cloudy, with a low around 69. Calm wind. Chance of precipitation is 10%.
Low: 69 °F		 Thursday

Thursday: A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 88. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 60%.
High: 88 °F		 Thursday
Night
Thursday Night: A 30 percent chance of showers and thunderstorms before 1am. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 68. North wind around 5 mph becoming calm.
Low: 68 °F		 Friday

Friday: A 20 percent chance of showers and thunderstorms after 1pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 88. Calm wind becoming north northeast around 5 mph in the afternoon.
High: 88 °F		 Friday
Night
Friday Night: Mostly clear, with a low around 63. North northeast wind around 5 mph becoming calm in the evening.
Low: 63 °F		 Saturday

Saturday: Sunny, with a high near 90. Calm wind becoming northeast around 5 mph.
High: 90 °F		 Saturday
Night
Saturday Night: Mostly clear, with a low around 66. Calm wind.
Low: 66 °F
Mostly Clear

 Mostly Sunny

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

 Sunny

 Mostly Clear

 

Tonight
 
 Mostly clear, with a low around 64. Calm wind.
Wednesday
 
 Mostly sunny, with a high near 91. Calm wind becoming west around 5 mph.
Wednesday Night
 
 A slight chance of thunderstorms after 5am. Partly cloudy, with a low around 69. Calm wind. Chance of precipitation is 10%.
Thursday
 
 A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 88. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 60%.
Thursday Night
 
 A 30 percent chance of showers and thunderstorms before 1am. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 68. North wind around 5 mph becoming calm.
Friday
 
 A 20 percent chance of showers and thunderstorms after 1pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 88. Calm wind becoming north northeast around 5 mph in the afternoon.
Friday Night
 
 Mostly clear, with a low around 63. North northeast wind around 5 mph becoming calm in the evening.
Saturday
 
 Sunny, with a high near 90. Calm wind becoming northeast around 5 mph.
Saturday Night
 
 Mostly clear, with a low around 66. Calm wind.
Sunday
 
 Sunny, with a high near 92.
Sunday Night
 
 Mostly clear, with a low around 70.
Monday
 
 Sunny, with a high near 92.
Monday Night
 
 Partly cloudy, with a low around 72.
Tuesday
 
 A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.

 

Forecast from NOAA-NWS for Watertown TN.