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National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 4:36 am CDT Aug 27, 2026
 
Today

Today: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 90. Calm wind becoming west northwest around 5 mph in the afternoon.
High: 90 °F		 Tonight

Tonight: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Patchy fog after midnight. Otherwise, partly cloudy, with a low around 65. North wind around 5 mph becoming calm.
Low: 65 °F		 Friday

Friday: Areas of fog before 8am. Otherwise, sunny, with a high near 88. Calm wind becoming north around 5 mph in the afternoon.
High: 88 °F		 Friday
Night
Friday Night: Mostly cloudy, then gradually becoming clear, with a low around 63. North 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 67. Calm wind.
Low: 67 °F		 Sunday

Sunday: Sunny, with a high near 91. South wind around 5 mph.
High: 91 °F		 Sunday
Night
Sunday Night: Mostly clear, with a low around 70. Calm wind becoming south southeast around 5 mph.
Low: 70 °F		 Monday

Monday: Sunny, with a high near 92. South southwest wind around 5 mph.
High: 92 °F
Patchy Fog
then Chance
T-storms
 Chance
T-storms then
Patchy Fog
 Areas Fog
then Mostly
Sunny
 Decreasing
Clouds
 Sunny

 Mostly Clear

 Sunny

 Mostly Clear

 Sunny

 

Today
 
 A 30 percent chance of showers and thunderstorms, mainly after 5pm. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 90. Calm wind becoming west northwest around 5 mph in the afternoon.
Tonight
 
 A 30 percent chance of showers and thunderstorms, mainly before 7pm. Patchy fog after midnight. Otherwise, partly cloudy, with a low around 65. North wind around 5 mph becoming calm.
Friday
 
 Areas of fog before 8am. Otherwise, sunny, with a high near 88. Calm wind becoming north around 5 mph in the afternoon.
Friday Night
 
 Mostly cloudy, then gradually becoming clear, with a low around 63. North 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 67. Calm wind.
Sunday
 
 Sunny, with a high near 91. South wind around 5 mph.
Sunday Night
 
 Mostly clear, with a low around 70. Calm wind becoming south southeast around 5 mph.
Monday
 
 Sunny, with a high near 92. South southwest wind around 5 mph.
Monday Night
 
 Mostly clear, with a low around 71.
Tuesday
 
 Sunny, with a high near 93.
Tuesday Night
 
 Mostly clear, with a low around 72.
Wednesday
 
 Sunny, with a high near 94.

 

Forecast from NOAA-NWS for Watertown TN.