CLARKSVILLE, TN (CLARKSVILLE NOW) – An Extreme Heat Warning has been issued for Montgomery and surrounding counties through 7 p.m. Sunday.

Dangerously hot conditions continue, with heat index values up to 112. At 3 p.m. Saturday, the temperature reached 98 degrees, with a 107 index, at Clarksville Regional Airport.

“Heat related illnesses increase significantly during extreme heat and high humidity events,” the NWS said. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.”

Clarksville forecast

Here’s the day-by-day outlook.

  • Sunday: Sunny and hot, with a high near 99. Heat index values as high as 109. South wind 5 to 10 mph becoming west in the afternoon.
  • Sunday night: Mostly clear, with a low around 76. Southwest wind around 5 mph.
  • Monday: A 20% chance of showers and thunderstorms after 1 p.m. Mostly sunny, with a high near 93. Heat index values as high as 106. Northwest wind 5 to 10 mph.
  • Monday night: Patchy fog after 4 a.m. Otherwise, partly cloudy, with a low around 70. North northwest wind 5 to 10 mph becoming light north in the evening.
  • Tuesday: Patchy fog before 8 a.m. Otherwise, sunny, with a high near 91. Calm wind becoming north around 5 mph in the afternoon.
  • Tuesday night: Mostly clear, with a low around 69. North northeast wind around 5 mph becoming calm.

| WEATHER UPDATESClick here for seven-day and hour-by-hour Clarksville weather forecasts