| National Weather Service Forecast for:
Watertown TN Issued by: National Weather Service Nashville, TN |
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| Updated: 1:31 am CDT Aug 15, 2026 | ||||||||||||||||||
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| Today |
Sunny, with a high near 96. Heat index values as high as 106. Calm wind becoming west southwest around 5 mph in the morning. |
| Tonight |
Mostly clear, with a low around 74. Calm wind becoming south southwest around 5 mph. |
| Sunday |
Sunny and hot, with a high near 98. Heat index values as high as 106. West wind 5 to 10 mph. |
| Sunday Night |
Mostly clear, with a low around 75. West southwest wind around 5 mph becoming calm. |
| Monday |
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 95. Light and variable wind becoming northwest 5 to 10 mph in the morning. |
| Monday Night |
Patchy fog after 5am. Otherwise, partly cloudy, with a low around 70. North wind around 5 mph becoming calm in the evening. |
| Tuesday |
Areas of fog before 8am. Otherwise, sunny, with a high near 91. Calm wind becoming north northwest around 5 mph in the afternoon. |
| Tuesday Night |
Mostly clear, with a low around 70. Calm wind. |
| Wednesday |
Mostly sunny, with a high near 95. Light south wind becoming west southwest 5 to 10 mph in the morning. |
| Wednesday Night |
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. |
| Thursday |
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. |
| Thursday Night |
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67. |
| Friday |
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88. |
Forecast from NOAA-NWS for Watertown TN.