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National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 1:31 pm CDT Jul 22, 2026
 
This
Afternoon
This Afternoon: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86. North northwest wind around 5 mph.
High: 86 °F		 Tonight

Tonight: Mostly cloudy, with a low around 65. North northeast wind 5 to 10 mph.
Low: 65 °F		 Thursday

Thursday: Mostly sunny, with a high near 83. North wind around 5 mph.
High: 83 °F		 Thursday
Night
Thursday Night: Partly cloudy, with a low around 63. North wind around 5 mph becoming calm in the evening.
Low: 63 °F		 Friday

Friday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. Calm wind becoming north northwest around 5 mph.
High: 85 °F		 Friday
Night
Friday Night: A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 40%.
Low: 68 °F		 Saturday

Saturday: Showers likely and possibly a thunderstorm before 1pm, then showers and thunderstorms likely between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 85. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 70%.
High: 85 °F		 Saturday
Night
Saturday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Calm wind.
Low: 71 °F		 Sunday

Sunday: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. Calm wind becoming west around 5 mph in the afternoon.
High: 90 °F
Slight Chance
T-storms

 Mostly Cloudy

 Mostly Sunny

 Partly Cloudy

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

 Slight Chance
T-storms

 

This Afternoon
 
 A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86. North northwest wind around 5 mph.
Tonight
 
 Mostly cloudy, with a low around 65. North northeast wind 5 to 10 mph.
Thursday
 
 Mostly sunny, with a high near 83. North wind around 5 mph.
Thursday Night
 
 Partly cloudy, with a low around 63. North wind around 5 mph becoming calm in the evening.
Friday
 
 A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. Calm wind becoming north northwest around 5 mph.
Friday Night
 
 A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 40%.
Saturday
 
 Showers likely and possibly a thunderstorm before 1pm, then showers and thunderstorms likely between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 85. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 70%.
Saturday Night
 
 A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Calm wind.
Sunday
 
 A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. Calm wind becoming west around 5 mph in the afternoon.
Sunday Night
 
 Mostly clear, with a low around 72.
Monday
 
 Mostly sunny, with a high near 92.
Monday Night
 
 A 20 percent chance of showers. Mostly clear, with a low around 73.
Tuesday
 
 Mostly sunny, with a high near 92.

 

Forecast from NOAA-NWS for Watertown TN.