ASHEVILLE, N.C. (828newsNOW) — Oppressive heat and humidity are expected to build across Western North Carolina through the weekend and into next week, with dangerous heat index values likely from Sunday through midweek, forecasters said.

The National Weather Service in Greenville-Spartanburg has issued warnings about the prolonged heat wave, which is defined as a period of abnormally hot and humid weather lasting more than two days. Afternoon showers and thunderstorms may develop in the North Carolina mountains, but rain chances remain isolated elsewhere.

Heat is the leading cause of weather-related deaths in the United States, often claiming more lives annually than hurricanes, floods or tornadoes. The Weather Service urged residents to stay indoors in air-conditioned spaces and remain hydrated. If air conditioning is unavailable, finding shade and minimizing outdoor activity are critical.

Vulnerable groups — including infants, young children, the elderly, people with chronic health conditions and pregnant women — face heightened risk during extreme heat. According to federal health officials, prolonged exposure can worsen existing medical issues and increase the risk of heat-related illnesses and even death.

Officials also emphasized never leaving children, pets or disabled individuals inside parked vehicles. In 2024 alone, 39 children died in hot cars nationwide, the Weather Service said.

The Woodfin Fire Department reminded residents to stay hydrated and avoid outdoor activity during storms, especially when lightning is present.

Here is the latest National Weather Service forecast for the Asheville area:

  • This afternoon: A 30% chance of showers and thunderstorms. Partly sunny, with highs near 91.
  • Tonight: A 30% chance of showers before 8 p.m. Partly cloudy, with lows around 68.
  • Saturday: Patchy morning fog, then mostly sunny with a 30% chance of storms after 3 p.m. Highs near 92.
  • Saturday night: A 30% chance of storms before 8 p.m., with a low around 69.
  • Sunday: Mostly sunny with a 30% chance of afternoon storms. Highs near 92.
  • Sunday night: A 30% chance of showers before 9 p.m., partly cloudy with lows around 70.

For more information on heat safety, click here.