The National Weather Service has issued an Excessive Heat Warning for ten counties. Graham, Greenlee, Mohave and Pima County will be affected through July 8. Coconino and Yavapai Counties will be affected in areas below 4,000 ft through July 8. La Paz, Maricopa, Pinal and Yuma Counties will be affected through July 9. Daytime highs up to 117°F are expected. Public cooling centers are available in some areas. Stay cool, stay hydrated, and stay informed.