| National Weather Service Forecast for:
Watertown TN Issued by: National Weather Service Nashville, TN |
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| Updated: 11:36 am CDT Aug 6, 2026 | ||||||||||||||||||
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| This Afternoon |
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. Heat index values as high as 99. West southwest wind around 5 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. |
| Tonight |
A 20 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 71. South southeast wind around 5 mph. |
| Friday |
A 30 percent chance of showers and thunderstorms, mainly between 1pm and 2pm. Mostly sunny, with a high near 90. Heat index values as high as 98. South southwest wind around 5 mph. |
| Friday Night |
A 30 percent chance of showers and thunderstorms, mainly after 5am. Partly cloudy, with a low around 72. South wind around 5 mph. |
| Saturday |
A chance of showers, with thunderstorms also possible after 10am. Mostly sunny, with a high near 90. West southwest wind around 5 mph. Chance of precipitation is 50%. |
| Saturday Night |
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 71. Calm wind. Chance of precipitation is 20%. |
| Sunday |
Mostly sunny, with a high near 91. Calm wind becoming southwest around 5 mph. |
| Sunday Night |
A slight chance of showers and thunderstorms. Mostly clear, with a low around 71. Calm wind becoming south around 5 mph. Chance of precipitation is 20%. |
| Monday |
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. South southwest wind around 5 mph. |
| Monday Night |
Partly cloudy, with a low around 73. |
| Tuesday |
Showers and thunderstorms likely. Mostly sunny, with a high near 91. Chance of precipitation is 60%. |
| Tuesday Night |
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. |
| Wednesday |
Showers and thunderstorms likely. Mostly sunny, with a high near 89. Chance of precipitation is 60%. |
Forecast from NOAA-NWS for Watertown TN.



