A heat advisory was allowed to expire for most of North Texas at 7 p.m. Monday, but people are still urged to use extreme caution while outside in the heat as temperatures are expected to reach the upper 90s Tuesday.
The heat advisory was extended until 7 p.m. Tuesday for counties in southeastern North Texas, including Anderson, Freestone, Henderson and Navarro counties.
The high temperature Monday at Dallas/Fort Worth International Airport was 106 degrees, with a heat index as high as 110 degrees across much of North Texas.
"A weak cold front will approach the area on Tuesday and shave off a couple degrees from the high with a more noticeable drop by Wednesday. There will also be a slight chance of rain accompanying the front," said NBC 5 Meteorologist Grant Johnston.
NBC 5 Chief Meteorologist David Finfrock said temperatures are measured in the shade -- if you're working outside in direct sunlight, you can add 10-15 degrees to the temperature.
So far this month, MedStar Ambulance said they've responded to more than 30 heat-related calls.