After dealing with high temperatures in the 90s, the Victor Valley is expected to experience at least a week of consecutive 100 degree-plus days.
An excessive heat wave is expected to begin Tuesday and possibly last beyond early next week, according to the National Weather Service.
High temperatures across the Victor Valley should range between 100 and 112 degrees, with Friday being the hottest day of the period.
Among the highs, Victorville is expected to reach 112, Adelanto and Apple Valley 111 and Hesperia 110.
High temperatures in Barstow and Las Vegas will range from 110 to 114 degrees, while Joshua Tree National Park will experience temps from 104 to 112.
The San Bernardino and Riverside areas will see high temperatures between 98 to 104 degrees, while Orange County will experience temps from 85 to 90.
Those wanting to escape the excessive heat might want to travel to the mountains, where Big Bear Lake will have high temperatures from 84 to 90 degrees. Wrightwood will experience temperatures ranging from 87 to 92.