CLARKSVILLE, TN (CLARKSVILLE NOW) – Hot and mostly clear weather is expected this weekend, with temperatures climbing into the upper 90s and a high near 99 degrees Sunday.

A Heat Advisory remains in effect through Sunday evening, with indexes near 109 expected, according to the National Weather Service.

The heat risk forecast for Saturday, Aug. 14, 2026. (National Weather Service, contributed)
The heat risk forecast for Saturday, Aug. 14, 2026. (National Weather Service, contributed)

“Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors,” the NWS said.

Clarksville forecast

Here’s the day-by-day outlook.

  • Friday: Sunny and hot, with a high near 97. Heat index values as high as 109. West southwest wind 5 to 10 mph.
  • Friday night: Mostly clear, with a low around 76. West southwest wind around 5 mph becoming calm.
  • Saturday: Sunny and hot, with a high near 98. West southwest wind around 5 mph.
  • Saturday night: Clear, with a low around 75. West southwest wind around 5 mph becoming calm.
  • Sunday: Sunny and hot, with a high near 99. West wind 5 to 10 mph.
  • Sunday night: Mostly clear, with a low around 76. West southwest wind around 5 mph.

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