| National Weather Service Forecast for:
Watertown TN Issued by: National Weather Service Nashville, TN |
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| Updated: 5:51 am CDT Sep 13, 2026 | ||||||||||||||||||
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| Today |
Sunny, with a high near 92. Calm wind becoming west northwest around 5 mph. |
| Tonight |
Mostly clear, with a low around 68. Calm wind. |
| Monday |
Sunny, with a high near 91. Heat index values as high as 97. Northeast wind around 5 mph. |
| Monday Night |
Mostly clear, with a low around 68. Northeast wind around 5 mph becoming calm after midnight. |
| Tuesday |
Sunny, with a high near 95. Calm wind becoming south around 5 mph. |
| Tuesday Night |
Mostly clear, with a low around 72. Calm wind becoming south around 5 mph after midnight. |
| Wednesday |
Sunny, with a high near 94. South southwest wind around 5 mph becoming calm in the afternoon. |
| Wednesday Night |
Mostly clear, with a low around 70. Calm wind. |
| Thursday |
Sunny, with a high near 94. Calm wind becoming southwest around 5 mph. |
| Thursday Night |
Mostly clear, with a low around 69. |
| Friday |
Sunny, with a high near 93. |
| Friday Night |
Mostly clear, with a low around 67. |
| Saturday |
Sunny, with a high near 90. |
Forecast from NOAA-NWS for Watertown TN.