| National Weather Service Forecast for:
Watertown TN Issued by: National Weather Service Nashville, TN |
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| Updated: 2:36 pm CDT Sep 3, 2026 | ||||||||||||||||||
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Heat Advisory
Air Quality Alert
| This Afternoon |
A 20 percent chance of showers and thunderstorms after 4pm. Sunny and hot, with a high near 98. Heat index values as high as 106. Calm wind. |
| Tonight |
Mostly clear, with a low around 74. Calm wind. |
| Friday |
Sunny and hot, with a high near 98. Heat index values as high as 107. Calm wind. |
| Friday Night |
Mostly clear, with a low around 74. Calm wind. |
| Saturday |
A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 97. Calm wind becoming northwest around 5 mph in the afternoon. |
| Saturday Night |
Mostly clear, with a low around 71. Calm wind. |
| Sunday |
Patchy fog before 7am. Otherwise, sunny, with a high near 94. Light northeast wind becoming north 5 to 10 mph in the afternoon. |
| Sunday Night |
Mostly clear, with a low around 68. Northeast wind 5 to 10 mph. |
| Labor Day |
Sunny, with a high near 91. Southeast wind around 5 mph. |
| Monday Night |
Partly cloudy, with a low around 69. |
| Tuesday |
Mostly sunny, with a high near 91. |
| Tuesday Night |
Partly cloudy, with a low around 69. |
| Wednesday |
Sunny, with a high near 93. |
Forecast from NOAA-NWS for Watertown TN.