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National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 1:31 am CDT Oct 27, 2026
 
Overnight

Overnight: Patchy fog. Otherwise, mostly clear, with a low around 44. Calm wind.
Low: 44 °F		 Tuesday

Tuesday: Areas of fog before 9am. Otherwise, sunny, with a high near 76. Calm wind becoming east around 5 mph.
High: 76 °F		 Tuesday
Night
Tuesday Night: Increasing clouds, with a low around 48. Calm wind.
Low: 48 °F		 Wednesday

Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 75. Calm wind becoming south around 5 mph in the morning.
High: 75 °F		 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 43. Calm wind.
Low: 43 °F		 Thursday

Thursday: Patchy fog before 8am. Otherwise, sunny, with a high near 77. Calm wind becoming south southwest around 5 mph.
High: 77 °F		 Thursday
Night
Thursday Night: Patchy fog after 5am. Otherwise, mostly clear, with a low around 44. Calm wind.
Low: 44 °F		 Friday

Friday: Areas of fog before 8am. Otherwise, mostly sunny, with a high near 79. Calm wind becoming east around 5 mph.
High: 79 °F		 Friday
Night
Friday Night: Mostly cloudy, with a low around 53. Calm wind.
Low: 53 °F
Patchy Fog

 Areas Fog
then Mostly
Sunny
 Increasing
Clouds
 Decreasing
Clouds
 Mostly Clear

 Patchy Fog
then Sunny
 Mostly Clear
then Patchy
Fog
 Areas Fog
then Partly
Sunny
 Mostly Cloudy

 

Overnight
 
 Patchy fog. Otherwise, mostly clear, with a low around 44. Calm wind.
Tuesday
 
 Areas of fog before 9am. Otherwise, sunny, with a high near 76. Calm wind becoming east around 5 mph.
Tuesday Night
 
 Increasing clouds, with a low around 48. Calm wind.
Wednesday
 
 Mostly cloudy, then gradually becoming sunny, with a high near 75. Calm wind becoming south around 5 mph in the morning.
Wednesday Night
 
 Mostly clear, with a low around 43. Calm wind.
Thursday
 
 Patchy fog before 8am. Otherwise, sunny, with a high near 77. Calm wind becoming south southwest around 5 mph.
Thursday Night
 
 Patchy fog after 5am. Otherwise, mostly clear, with a low around 44. Calm wind.
Friday
 
 Areas of fog before 8am. Otherwise, mostly sunny, with a high near 79. Calm wind becoming east around 5 mph.
Friday Night
 
 Mostly cloudy, with a low around 53. Calm wind.
Saturday
 
 A 30 percent chance of showers, mainly after 1pm. Mostly cloudy, with a high near 75.
Saturday Night
 
 Showers likely. Mostly cloudy, with a low around 55. Chance of precipitation is 70%.
Sunday
 
 Showers likely. Mostly cloudy, with a high near 71. Chance of precipitation is 60%.
Sunday Night
 
 A 20 percent chance of showers. Mostly cloudy, with a low around 54.
Monday
 
 A 20 percent chance of showers. Partly sunny, with a high near 75.

 

Forecast from NOAA-NWS for Watertown TN.