| National Weather Service Forecast for:
Watertown TN Issued by: National Weather Service Nashville, TN |
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| Updated: 10:36 pm CDT Aug 5, 2026 | ||||||||||||||||||
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| Overnight |
Mostly clear, with a low around 70. Calm wind becoming south around 5 mph. |
| Thursday |
A slight chance of showers and thunderstorms between noon and 4pm. Mostly sunny, with a high near 90. Heat index values as high as 98. South wind around 5 mph becoming west in the afternoon. Chance of precipitation is 20%. |
| Thursday Night |
Partly cloudy, with a low around 71. South wind around 5 mph. |
| Friday |
A 40 percent chance of showers and thunderstorms, mainly between 1pm and 5pm. Sunny, with a high near 91. Heat index values as high as 99. South southwest wind around 5 mph. |
| Friday Night |
A chance of showers and thunderstorms. Partly cloudy, with a low around 71. South wind around 5 mph. Chance of precipitation is 30%. |
| Saturday |
A chance of showers, with thunderstorms also possible after 10am. Mostly sunny, with a high near 89. Southwest wind around 5 mph. Chance of precipitation is 50%. |
| Saturday Night |
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 70. Calm wind. Chance of precipitation is 20%. |
| Sunday |
Mostly sunny, with a high near 91. Calm wind becoming south southwest around 5 mph. |
| Sunday Night |
Mostly clear, with a low around 72. Calm wind becoming south around 5 mph. |
| Monday |
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. |
| Monday Night |
Partly cloudy, with a low around 73. |
| Tuesday |
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92. |
| Tuesday Night |
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. |
| Wednesday |
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 89. |
Forecast from NOAA-NWS for Watertown TN.




