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National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 6:01 am CDT Aug 2, 2026
 
Today

Today: A slight chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Partly sunny, with a high near 81. West wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
High: 81 °F		 Tonight

Tonight: A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 67. West northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.
Low: 67 °F		 Monday

Monday: A slight chance of showers before 1pm, then a slight chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 84. Light northwest wind becoming north 5 to 10 mph in the morning. Chance of precipitation is 20%.
High: 84 °F		 Monday
Night
Monday Night: A 10 percent chance of showers and thunderstorms before 7pm. Patchy fog after midnight. Otherwise, partly cloudy, with a low around 67. North wind around 5 mph becoming calm in the evening.
Low: 67 °F		 Tuesday

Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 86. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 40%.
High: 86 °F		 Tuesday
Night
Tuesday Night: Patchy fog before 1am, then patchy fog after 4am. Otherwise, partly cloudy, with a low around 68. Calm wind.
Low: 68 °F		 Wednesday

Wednesday: A 20 percent chance of showers and thunderstorms after 1pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 88. Calm wind becoming west southwest around 5 mph.
High: 88 °F		 Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 69. Calm wind.
Low: 69 °F		 Thursday

Thursday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 90. Calm wind becoming south southwest around 5 mph in the morning.
High: 90 °F
Partly Sunny
then Showers
Likely
 Chance
Showers and
Patchy Fog
 Slight Chance
Showers then
Slight Chance
T-storms
 Slight Chance
T-storms then
Patchy Fog
 Chance
T-storms and
Patchy Fog
 Partly Cloudy
then Patchy
Fog
 Patchy Fog
then Slight
Chance
T-storms
 Partly Cloudy

 Sunny then
Slight Chance
T-storms

 

Today
 
 A slight chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Partly sunny, with a high near 81. West wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
 
 A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 67. West northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.
Monday
 
 A slight chance of showers before 1pm, then a slight chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 84. Light northwest wind becoming north 5 to 10 mph in the morning. Chance of precipitation is 20%.
Monday Night
 
 A 10 percent chance of showers and thunderstorms before 7pm. Patchy fog after midnight. Otherwise, partly cloudy, with a low around 67. North wind around 5 mph becoming calm in the evening.
Tuesday
 
 A slight chance of showers, then a chance of showers and thunderstorms after 10am. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 86. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 40%.
Tuesday Night
 
 Patchy fog before 1am, then patchy fog after 4am. Otherwise, partly cloudy, with a low around 68. Calm wind.
Wednesday
 
 A 20 percent chance of showers and thunderstorms after 1pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 88. Calm wind becoming west southwest around 5 mph.
Wednesday Night
 
 Partly cloudy, with a low around 69. Calm wind.
Thursday
 
 A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 90. Calm wind becoming south southwest around 5 mph in the morning.
Thursday Night
 
 Partly cloudy, with a low around 71.
Friday
 
 A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
Friday Night
 
 A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Saturday
 
 A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.

 

Forecast from NOAA-NWS for Watertown TN.