| National Weather Service Forecast for:
Watertown TN Issued by: National Weather Service Nashville, TN |
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| Updated: 6:56 pm CDT Aug 29, 2026 | ||||||||||||||||||
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| Tonight |
Mostly clear, with a low around 70. South wind around 5 mph. |
| Sunday |
Sunny, with a high near 92. Heat index values as high as 98. South southwest wind around 5 mph. |
| Sunday Night |
Mostly clear, with a low around 71. Calm wind becoming south around 5 mph. |
| Monday |
Sunny, with a high near 93. Heat index values as high as 100. Calm wind becoming south southwest around 5 mph. |
| Monday Night |
Mostly clear, with a low around 72. Calm wind. |
| Tuesday |
Sunny, with a high near 94. Calm wind. |
| Tuesday Night |
Mostly clear, with a low around 73. Calm wind. |
| Wednesday |
Sunny, with a high near 95. Calm wind. |
| Wednesday Night |
Mostly clear, with a low around 74. Calm wind. |
| Thursday |
Sunny, with a high near 95. |
| Thursday Night |
Mostly clear, with a low around 73. |
| Friday |
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 94. |
| Friday Night |
A 20 percent chance of showers. Mostly clear, with a low around 71. |
| Saturday |
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 93. |
Forecast from NOAA-NWS for Watertown TN.