| National Weather Service Forecast for:
Watertown TN Issued by: National Weather Service Nashville, TN |
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| Updated: 1:31 pm CDT Aug 8, 2026 | ||||||||||||||||||
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| Tonight |
A 20 percent chance of showers and thunderstorms before 9pm. Mostly cloudy, with a low around 71. South wind around 5 mph becoming calm. |
| Sunday |
A 40 percent chance of showers and thunderstorms, mainly before 3pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 89. Heat index values as high as 99. Calm wind becoming south southeast around 5 mph in the afternoon. |
| Sunday Night |
A 10 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 72. South wind around 5 mph. |
| Monday |
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 91. Heat index values as high as 102. Southwest wind around 5 mph. Chance of precipitation is 30%. |
| Monday Night |
Mostly clear, with a low around 72. South wind around 5 mph. |
| Tuesday |
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 91. Southwest wind around 5 mph. |
| Tuesday Night |
Mostly clear, with a low around 72. South wind around 5 mph. |
| Wednesday |
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. West southwest wind 5 to 10 mph. |
| Wednesday Night |
A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. South southwest wind around 5 mph. Chance of precipitation is 50%. |
| Thursday |
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 89. |
| Thursday Night |
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72. |
| Friday |
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 88. |
| Friday Night |
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72. |
| Saturday |
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 89. |
Forecast from NOAA-NWS for Watertown TN.





