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National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 1:31 pm CDT Aug 22, 2026
 
This
Afternoon
This Afternoon: Sunny, with a high near 90. West northwest wind 5 to 10 mph.
High: 90 °F		 Tonight

Tonight: A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 63. Northwest wind around 5 mph becoming calm in the evening.
Low: 63 °F		 Sunday

Sunday: Sunny, with a high near 86. Calm wind becoming north northwest around 5 mph in the afternoon.
High: 86 °F		 Sunday
Night
Sunday Night: Partly cloudy, with a low around 61. North northwest wind around 5 mph becoming calm.
Low: 61 °F		 Monday

Monday: Sunny, with a high near 86. Calm wind becoming north northwest around 5 mph.
High: 86 °F		 Monday
Night
Monday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 62. Calm wind.
Low: 62 °F		 Tuesday

Tuesday: Mostly sunny, with a high near 87. Calm wind becoming southeast around 5 mph.
High: 87 °F		 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 65. Calm wind.
Low: 65 °F		 Wednesday

Wednesday: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 90. Calm wind becoming south southwest around 5 mph.
High: 90 °F
Sunny

 Slight Chance
T-storms then
Mostly Clear
 Sunny

 Partly Cloudy

 Sunny

 Partly Cloudy
then Slight
Chance
Showers
 Mostly Sunny

 Mostly Clear

 Chance
T-storms

 

This Afternoon
 
 Sunny, with a high near 90. West northwest wind 5 to 10 mph.
Tonight
 
 A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 63. Northwest wind around 5 mph becoming calm in the evening.
Sunday
 
 Sunny, with a high near 86. Calm wind becoming north northwest around 5 mph in the afternoon.
Sunday Night
 
 Partly cloudy, with a low around 61. North northwest wind around 5 mph becoming calm.
Monday
 
 Sunny, with a high near 86. Calm wind becoming north northwest around 5 mph.
Monday Night
 
 A 20 percent chance of showers after 1am. Partly cloudy, with a low around 62. Calm wind.
Tuesday
 
 Mostly sunny, with a high near 87. Calm wind becoming southeast around 5 mph.
Tuesday Night
 
 Mostly clear, with a low around 65. Calm wind.
Wednesday
 
 A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 90. Calm wind becoming south southwest around 5 mph.
Wednesday Night
 
 A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 40%.
Thursday
 
 A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Thursday Night
 
 A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Friday
 
 A 20 percent chance of showers. Sunny, with a high near 89.

 

Forecast from NOAA-NWS for Watertown TN.