| National Weather Service Forecast for:
Watertown TN Issued by: National Weather Service Nashville, TN |
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| Updated: 1:31 am CDT Aug 14, 2026 | ||||||||||||||||||
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| Today |
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 95. Heat index values as high as 107. West southwest wind around 5 mph. |
| Tonight |
Partly cloudy, with a low around 75. South southwest wind around 5 mph becoming calm. |
| Saturday |
Sunny and hot, with a high near 97. Heat index values as high as 107. Calm wind becoming west around 5 mph in the afternoon. |
| Saturday Night |
Mostly clear, with a low around 74. Calm wind. |
| Sunday |
Sunny and hot, with a high near 98. West southwest wind around 5 mph. |
| Sunday Night |
Mostly clear, with a low around 75. Calm wind becoming southwest around 5 mph. |
| Monday |
A 30 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 96. South southwest wind 5 to 10 mph becoming northwest in the afternoon. |
| Monday Night |
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 72. North northwest wind around 5 mph becoming calm in the evening. |
| Tuesday |
Mostly sunny, with a high near 91. Calm wind becoming north northwest around 5 mph in the afternoon. |
| Tuesday Night |
Mostly clear, with a low around 69. |
| Wednesday |
Sunny, with a high near 94. |
| Wednesday Night |
A 20 percent chance of showers. Partly cloudy, with a low around 72. |
| Thursday |
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 93. |
Forecast from NOAA-NWS for Watertown TN.