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National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 6:26 pm CDT Jun 22, 2026
 
Overnight

Overnight: A slight chance of showers between 3am and 4am. Mostly cloudy, with a low around 63. Northwest wind around 5 mph. Chance of precipitation is 20%.
Low: 63 °F		 Tuesday

Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 81. North wind 5 to 10 mph.
High: 81 °F		 Tuesday
Night
Tuesday Night: Patchy fog between 3am and 4am. Otherwise, mostly clear, with a low around 58. North wind around 5 mph becoming calm.
Low: 58 °F		 Wednesday

Wednesday: Patchy fog before 7am. Otherwise, sunny, with a high near 86. Calm wind becoming east around 5 mph.
High: 86 °F		 Wednesday
Night
Wednesday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 66. Calm wind.
Low: 66 °F		 Thursday

Thursday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. Calm wind becoming south southwest around 5 mph in the afternoon.
High: 88 °F		 Thursday
Night
Thursday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 69. South southwest wind around 5 mph becoming calm. Chance of precipitation is 30%.
Low: 69 °F		 Friday

Friday: A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89. South wind 5 to 10 mph.
High: 89 °F		 Friday
Night
Friday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. South southwest wind around 5 mph.
Low: 72 °F
Slight Chance
Showers

 Decreasing
Clouds

 Mostly Clear
then Patchy
Fog
 Patchy Fog
then Sunny

 Partly Cloudy
then Slight
Chance
Showers
 Mostly Sunny
then Chance
T-storms
 Chance
Showers

 Chance
Showers then
Chance
T-storms
 Chance
T-storms

 

Overnight
 
 A slight chance of showers between 3am and 4am. Mostly cloudy, with a low around 63. Northwest wind around 5 mph. Chance of precipitation is 20%.
Tuesday
 
 Mostly cloudy, then gradually becoming sunny, with a high near 81. North wind 5 to 10 mph.
Tuesday Night
 
 Patchy fog between 3am and 4am. Otherwise, mostly clear, with a low around 58. North wind around 5 mph becoming calm.
Wednesday
 
 Patchy fog before 7am. Otherwise, sunny, with a high near 86. Calm wind becoming east around 5 mph.
Wednesday Night
 
 A 20 percent chance of showers after 1am. Partly cloudy, with a low around 66. Calm wind.
Thursday
 
 A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. Calm wind becoming south southwest around 5 mph in the afternoon.
Thursday Night
 
 A chance of showers and thunderstorms. Partly cloudy, with a low around 69. South southwest wind around 5 mph becoming calm. Chance of precipitation is 30%.
Friday
 
 A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89. South wind 5 to 10 mph.
Friday Night
 
 A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. South southwest wind around 5 mph.
Saturday
 
 A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 90.
Saturday Night
 
 A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Sunday
 
 A 20 percent chance of showers and thunderstorms. Sunny, with a high near 92.
Sunday Night
 
 Mostly clear, with a low around 73.
Monday
 
 Sunny, with a high near 94.

 

Forecast from NOAA-NWS for Watertown TN.