| National Weather Service Forecast for:
Watertown TN Issued by: National Weather Service Nashville, TN |
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| Updated: 5:06 am CDT Sep 18, 2026 | ||||||||||||||||||
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| This Afternoon |
Sunny, with a high near 96. Heat index values as high as 102. North wind around 5 mph. |
| Tonight |
Mostly clear, with a low around 70. Calm wind. |
| Saturday |
A slight chance of showers and thunderstorms between 3pm and 4pm. Sunny, with a high near 96. Heat index values as high as 102. Calm wind becoming northwest around 5 mph. Chance of precipitation is 20%. |
| Saturday Night |
Partly cloudy, with a low around 70. Calm wind becoming south around 5 mph. |
| Sunday |
Mostly sunny, with a high near 95. South wind around 5 mph becoming west southwest in the afternoon. |
| Sunday Night |
Partly cloudy, with a low around 70. Calm wind becoming south around 5 mph. |
| Monday |
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94. South wind around 5 mph becoming west southwest in the afternoon. |
| Monday Night |
A chance of showers and thunderstorms. Partly cloudy, with a low around 67. South wind around 5 mph becoming east southeast in the evening. Chance of precipitation is 50%. |
| Tuesday |
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. Light and variable wind becoming northwest 5 to 10 mph in the morning. Chance of precipitation is 50%. |
| Tuesday Night |
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 62. |
| Wednesday |
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 82. |
| Wednesday Night |
Partly cloudy, with a low around 59. |
| Thursday |
Mostly sunny, with a high near 80. |
Forecast from NOAA-NWS for Watertown TN.





