The National Weather Service has raised an Excessive Heat Warning this week through Thursday.
The heat warning, according to the weather service, is for the valleys and basins of Yavapai County below 4,000 feet
The Weather Service says heat-related illness will be likely for those doing strenuous activity outdoors or those with health conditions that do not have adequate access to air conditioning.
It could be fatal if left untreated.
Excessive Heat describes a prolonged period of dangerously hot temperatures. High temperatures could reach between 108 and 112 degrees.
Drink plenty of fluids, stay in air conditioning room if possible, out of the son and check on relatives and neighbors.
The Occupational Safety and Health Administration recommends scheduling frequent rest breaks.