CLARKSVILLE, TN (CLARKSVILLE NOW) – With highs in the upper 90s and heat index values reaching as high as 108, a Heat Advisory has been issued for Montgomery and surrounding counties this week.

The advisory from the National Weather Service is in effect from 11 a.m. Tuesday to 8 p.m. Wednesday. “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.

Overnight temperatures will remain warm, with lows in the lower to mid-70s and mostly clear skies.

Clarksville forecast

Here’s the day-by-day outlook.

  • Tuesday: Sunny and hot, with a high near 99. Heat index values as high as 108. South-southeast wind around 5 mph becoming southwest in the afternoon.
  • Tuesday night: Mostly clear, with a low around 76. South wind around 5 mph.
  • Wednesday: Sunny and hot, with a high near 98. Heat index values as high as 106. South wind around 5 mph.
  • Wednesday night: Mostly clear, with a low around 73. Calm wind.
  • Thursday: Sunny and hot, with a high near 97. Calm wind becoming west around 5 mph.
  • Thursday night: Mostly clear, with a low around 72. Calm wind.

| WEATHER UPDATES: Click here for seven-day and hour-by-hour Clarksville weather forecasts