| National Weather Service Forecast for:
Watertown TN Issued by: National Weather Service Nashville, TN |
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| Updated: 10:46 pm CDT Aug 10, 2026 | ||||||||||||||||||
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| Overnight |
Mostly clear, with a low around 73. South southwest wind around 5 mph. |
| Tuesday |
Sunny, with a high near 93. Heat index values as high as 104. West southwest wind 5 to 10 mph. |
| Tuesday Night |
Partly cloudy, with a low around 73. South southwest wind around 5 mph. |
| Wednesday |
A chance of showers and thunderstorms between 1pm and 5pm. Mostly sunny, with a high near 94. Heat index values as high as 104. West southwest wind 5 to 10 mph. Chance of precipitation is 30%. |
| Wednesday Night |
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly cloudy, with a low around 74. South southwest wind around 5 mph. Chance of precipitation is 20%. |
| Thursday |
Mostly sunny, with a high near 95. West southwest wind 5 to 10 mph. |
| Thursday Night |
Mostly cloudy, with a low around 75. South wind around 5 mph. |
| Friday |
Mostly sunny, with a high near 95. South southwest wind around 5 mph becoming west northwest in the afternoon. |
| Friday Night |
Partly cloudy, with a low around 74. Calm wind. |
| Saturday |
Mostly sunny, with a high near 95. |
| Saturday Night |
Partly cloudy, with a low around 75. |
| Sunday |
Sunny and hot, with a high near 97. |
| Sunday Night |
Mostly clear, with a low around 74. |
| Monday |
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 95. |
Forecast from NOAA-NWS for Watertown TN.