| National Weather Service Forecast for:
Watertown TN Issued by: National Weather Service Nashville, TN |
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| Updated: 1:31 am CDT Sep 3, 2026 | ||||||||||||||||||
|
Heat Advisory
Air Quality Alert
| Overnight |
Clear, with a low around 75. Calm wind. |
| Thursday |
Sunny and hot, with a high near 98. Heat index values as high as 105. Calm wind. |
| Thursday Night |
Mostly clear, with a low around 75. Calm wind. |
| Friday |
Sunny and hot, with a high near 98. Heat index values as high as 106. Calm wind becoming north around 5 mph. |
| Friday Night |
Mostly clear, with a low around 73. Calm wind. |
| Saturday |
Sunny, with a high near 96. Calm wind becoming north around 5 mph in the afternoon. |
| Saturday Night |
Partly cloudy, with a low around 71. Calm wind. |
| Sunday |
Patchy fog before 8am. Otherwise, sunny, with a high near 94. Light east northeast wind becoming north 5 to 10 mph in the afternoon. |
| Sunday Night |
Mostly clear, with a low around 67. East northeast wind around 5 mph. |
| Labor Day |
Sunny, with a high near 92. |
| Monday Night |
Mostly clear, with a low around 69. |
| Tuesday |
Sunny, with a high near 92. |
| Tuesday Night |
Mostly clear, with a low around 70. |
| Wednesday |
Sunny, with a high near 93. |
Forecast from NOAA-NWS for Watertown TN.