The extreme heat warning has been extended until 9 p.m. Monday, but there are cooling centers where residents can get out of the heat. In Yucca Valley, the Hi-Desert Nature Center is open Saturday 10 to 5. In Twentynine Palms, the Senior Center on Adobe Road is a cooling center from 9 to 5 Monday through Friday; if the heat index reaches 115 degrees, the building will remain open. In Joshua Tree, the Hi-Desert Medical Center cafeteria is available as a cooling center every day from 10 a.m. to 6 p.m. In addition, the libraries in Twentynine Palms, Joshua Tree, and Yucca Valley are open Saturday 9 to 5. Other places to get out of the heat are stores, restaurants, and theaters.