The heat and humidity will make a return to the Potomac Communities on Wednesday.
Temperatures are expected to climb into the mid 90s, and heat index values will make it fell as hot as 105 degrees outside, according to the National Weather Service.
That has prompted a heat advisory for the area from noon until 8 p.m. Wednesday.
Residents are urged to stay indoors in air conditioning, put off strenuous activity until the late evening or do it during the early morning hours, know the signs of heat exhaustion and heat stroke and to wear light-colored clothing.
