- Hot temperatures are expected through Friday, reaching 100-110° for many lower elevations areas.
- An Excessive Heat Warning is valid for areas below 4000′ in the Grand Canyon, Marble/Glen Canyons, and the valleys of Yavapai County from 10 AM MST Thursday – 8 PM MST Friday.
- Isolated showers/thunderstorms possible Thursday, Friday, Saturday and Sunday afternoon, primarily for the eastern Rim and White Mountains.
- Storms later this week are likely to be high-based, with gusty winds and little rain – posing a threat of lightning caused fire starts.
