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National Weather Service Forecast for: Watertown TN
Issued by: National Weather Service Nashville, TN
Updated: 5:06 am CDT Jul 15, 2026
 
Today

Today: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 87. Southeast wind around 5 mph.
High: 87 °F		 Tonight

Tonight: Patchy fog after 2am. Otherwise, partly cloudy, with a low around 71. South wind around 5 mph becoming calm.
Low: 71 °F		 Thursday

Thursday: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 88. Calm wind becoming west southwest around 5 mph in the afternoon.
High: 88 °F		 Thursday
Night
Thursday Night: A 10 percent chance of showers and thunderstorms before 7pm. Patchy fog after 1am. Otherwise, partly cloudy, with a low around 71. West southwest wind around 5 mph becoming calm.
Low: 71 °F		 Friday

Friday: A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. Patchy fog before 8am. High near 88. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 80%.
High: 88 °F		 Friday
Night
Friday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70. West wind around 5 mph becoming calm.
Low: 70 °F		 Saturday

Saturday: Showers and possibly a thunderstorm. High near 88. West wind around 5 mph. Chance of precipitation is 80%.
High: 88 °F		 Saturday
Night
Saturday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71. Calm wind becoming southwest around 5 mph after midnight. Chance of precipitation is 60%.
Low: 71 °F		 Sunday

Sunday: A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 90. West northwest wind around 5 mph.
High: 90 °F
Partly Sunny
then Slight
Chance
T-storms
 Mostly Cloudy
then Patchy
Fog
 Patchy Fog
then Chance
T-storms
 Slight Chance
T-storms then
Patchy Fog
 Chance
T-storms and
Patchy Fog
then T-storms
 Chance
T-storms then
Chance
Showers
 Showers
Likely then
T-storms
 Showers
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 Slight Chance
T-storms then
Chance
T-storms

 

Today
 
 A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 87. Southeast wind around 5 mph.
Tonight
 
 Patchy fog after 2am. Otherwise, partly cloudy, with a low around 71. South wind around 5 mph becoming calm.
Thursday
 
 A 30 percent chance of showers and thunderstorms, mainly after 5pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 88. Calm wind becoming west southwest around 5 mph in the afternoon.
Thursday Night
 
 A 10 percent chance of showers and thunderstorms before 7pm. Patchy fog after 1am. Otherwise, partly cloudy, with a low around 71. West southwest wind around 5 mph becoming calm.
Friday
 
 A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. Patchy fog before 8am. High near 88. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 80%.
Friday Night
 
 A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70. West wind around 5 mph becoming calm.
Saturday
 
 Showers and possibly a thunderstorm. High near 88. West wind around 5 mph. Chance of precipitation is 80%.
Saturday Night
 
 Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71. Calm wind becoming southwest around 5 mph after midnight. Chance of precipitation is 60%.
Sunday
 
 A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 90. West northwest wind around 5 mph.
Sunday Night
 
 A 20 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 71.
Monday
 
 A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Monday Night
 
 Mostly clear, with a low around 73.
Tuesday
 
 A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.

 

Forecast from NOAA-NWS for Watertown TN.