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National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 6:31 pm CDT Jul 13, 2026
 
Tonight

Tonight: Partly cloudy, with a low around 68. Northeast wind around 5 mph becoming calm in the evening.
Low: 68 °F		 Tuesday

Tuesday: A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 85. Calm wind becoming east around 5 mph in the afternoon. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
High: 85 °F		 Tuesday
Night
Tuesday Night: A 20 percent chance of showers and thunderstorms before 8pm. Patchy fog before 1am, then patchy fog after 2am. Otherwise, partly cloudy, with a low around 68. Calm wind.
Low: 68 °F		 Wednesday

Wednesday: A 40 percent chance of showers and thunderstorms after 1pm. Areas of fog before 8am. Otherwise, mostly sunny, with a high near 88. Calm wind becoming east southeast around 5 mph.
High: 88 °F		 Wednesday
Night
Wednesday Night: Patchy fog after 1am. Otherwise, partly cloudy, with a low around 70. Calm wind.
Low: 70 °F		 Thursday

Thursday: A 40 percent chance of showers and thunderstorms after 1pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 89. Calm wind becoming west around 5 mph.
High: 89 °F		 Thursday
Night
Thursday Night: Mostly clear, with a low around 71. Calm wind.
Low: 71 °F		 Friday

Friday: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89. Calm wind becoming west northwest around 5 mph.
High: 89 °F		 Friday
Night
Friday Night: Partly cloudy, with a low around 72. Calm wind.
Low: 72 °F
Partly Cloudy

 Slight Chance
T-storms then
Chance
T-storms
 Slight Chance
T-storms then
Patchy Fog
 Areas Fog
then Chance
T-storms
 Partly Cloudy
then Patchy
Fog
 Patchy Fog
then Chance
T-storms
 Mostly Clear

 Chance
T-storms

 Partly Cloudy

 

Tonight
 
 Partly cloudy, with a low around 68. Northeast wind around 5 mph becoming calm in the evening.
Tuesday
 
 A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 85. Calm wind becoming east around 5 mph in the afternoon. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
 
 A 20 percent chance of showers and thunderstorms before 8pm. Patchy fog before 1am, then patchy fog after 2am. Otherwise, partly cloudy, with a low around 68. Calm wind.
Wednesday
 
 A 40 percent chance of showers and thunderstorms after 1pm. Areas of fog before 8am. Otherwise, mostly sunny, with a high near 88. Calm wind becoming east southeast around 5 mph.
Wednesday Night
 
 Patchy fog after 1am. Otherwise, partly cloudy, with a low around 70. Calm wind.
Thursday
 
 A 40 percent chance of showers and thunderstorms after 1pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 89. Calm wind becoming west around 5 mph.
Thursday Night
 
 Mostly clear, with a low around 71. Calm wind.
Friday
 
 A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89. Calm wind becoming west northwest around 5 mph.
Friday Night
 
 Partly cloudy, with a low around 72. Calm wind.
Saturday
 
 A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91.
Saturday Night
 
 A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 72.
Sunday
 
 A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
Sunday Night
 
 A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Monday
 
 A 30 percent chance of showers and thunderstorms. Sunny, with a high near 88.

 

Forecast from NOAA-NWS for Watertown TN.