| National Weather Service Forecast for:
Watertown TN Issued by: National Weather Service Nashville, TN |
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| Updated: 10:31 pm CDT Sep 13, 2026 | ||||||||||||||||||
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| Tonight |
Patchy fog after 5am. Otherwise, mostly clear, with a low around 68. Calm wind. |
| Monday |
Sunny, with a high near 91. 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 96. Heat index values as high as 102. South wind around 5 mph. |
| Tuesday Night |
Mostly clear, with a low around 72. South wind around 5 mph. |
| Wednesday |
Sunny, with a high near 95. South 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 95. Calm wind becoming southwest around 5 mph. |
| Thursday Night |
Mostly clear, with a low around 69. Calm wind. |
| Friday |
Sunny, with a high near 94. |
| Friday Night |
Mostly clear, with a low around 68. |
| Saturday |
Sunny, with a high near 94. |
| Saturday Night |
Partly cloudy, with a low around 68. |
| Sunday |
A 30 percent chance of showers. Mostly sunny, with a high near 90. |
Forecast from NOAA-NWS for Watertown TN.