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National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 1:31 am CDT Oct 17, 2026
 
Overnight

Overnight: Mostly cloudy, with a low around 42. North northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Low: 42 °F		 Saturday

Saturday: Mostly sunny, with a high near 60. North northeast wind around 15 mph, with gusts as high as 25 mph.
High: 60 °F		 Saturday
Night
Saturday Night: Patchy frost after 3am. Otherwise, clear, with a low around 36. Northeast wind 5 to 10 mph.
Low: 36 °F		 Sunday

Sunday: Patchy frost before 8am. Otherwise, sunny, with a high near 68. East northeast wind around 5 mph.
High: 68 °F		 Sunday
Night
Sunday Night: Patchy frost after 3am. Otherwise, clear, with a low around 37. Calm wind.
Low: 37 °F		 Monday

Monday: Areas of frost before 8am. Otherwise, sunny, with a high near 70. Calm wind becoming north around 5 mph in the afternoon.
High: 70 °F		 Monday
Night
Monday Night: Mostly clear, with a low around 39. North northeast wind around 5 mph becoming calm.
Low: 39 °F		 Tuesday

Tuesday: Sunny, with a high near 73. Calm wind becoming north northeast around 5 mph in the afternoon.
High: 73 °F		 Tuesday
Night
Tuesday Night: Clear, with a low around 41. North northeast wind around 5 mph becoming calm in the evening.
Low: 41 °F
Mostly Cloudy

 Mostly Sunny

 Mostly Clear
then Patchy
Frost
 Patchy Frost
then Sunny
 Clear then
Patchy Frost
 Areas Frost
then Sunny
 Mostly Clear

 Sunny

 Clear

 

Overnight
 
 Mostly cloudy, with a low around 42. North northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday
 
 Mostly sunny, with a high near 60. North northeast wind around 15 mph, with gusts as high as 25 mph.
Saturday Night
 
 Patchy frost after 3am. Otherwise, clear, with a low around 36. Northeast wind 5 to 10 mph.
Sunday
 
 Patchy frost before 8am. Otherwise, sunny, with a high near 68. East northeast wind around 5 mph.
Sunday Night
 
 Patchy frost after 3am. Otherwise, clear, with a low around 37. Calm wind.
Monday
 
 Areas of frost before 8am. Otherwise, sunny, with a high near 70. Calm wind becoming north around 5 mph in the afternoon.
Monday Night
 
 Mostly clear, with a low around 39. North northeast wind around 5 mph becoming calm.
Tuesday
 
 Sunny, with a high near 73. Calm wind becoming north northeast around 5 mph in the afternoon.
Tuesday Night
 
 Clear, with a low around 41. North northeast wind around 5 mph becoming calm in the evening.
Wednesday
 
 Sunny, with a high near 76.
Wednesday Night
 
 Clear, with a low around 42.
Thursday
 
 Sunny, with a high near 77.
Thursday Night
 
 Clear, with a low around 44.
Friday
 
 Sunny, with a high near 79.

 

Forecast from NOAA-NWS for Watertown TN.