| National Weather Service Forecast for:
Watertown TN Issued by: National Weather Service Nashville, TN |
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| Updated: 1:31 am CDT Sep 19, 2026 | ||||||||||||||||||
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| Overnight |
Mostly clear, with a low around 70. Calm wind. |
| Saturday |
A 20 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 97. Heat index values as high as 103. Calm wind becoming west northwest around 5 mph. |
| Saturday Night |
Mostly clear, with a low around 71. Calm wind becoming south around 5 mph. |
| Sunday |
Sunny, with a high near 96. Heat index values as high as 101. South southwest wind around 5 mph. |
| Sunday Night |
Partly cloudy, with a low around 70. Calm wind becoming south around 5 mph. |
| Monday |
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94. South wind around 5 mph becoming west northwest in the afternoon. |
| Monday Night |
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. North wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. |
| Tuesday |
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 86. Calm wind becoming north northwest around 5 mph in the afternoon. Chance of precipitation is 60%. |
| Tuesday Night |
A 50 percent chance of showers. Partly cloudy, with a low around 62. North wind around 5 mph becoming calm in the evening. |
| Wednesday |
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 80. Chance of precipitation is 50%. |
| Wednesday Night |
A 20 percent chance of showers. Partly cloudy, with a low around 59. |
| Thursday |
A 20 percent chance of showers. Mostly sunny, with a high near 79. |
| Thursday Night |
Partly cloudy, with a low around 57. |
| Friday |
Mostly sunny, with a high near 79. |
Forecast from NOAA-NWS for Watertown TN.





