…EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM PDT/MST WEDNESDAY… * WHAT…Dangerously hot conditions expected. Forecast high temperatures are 105 to 110 in Las Vegas, Mesquite, Pahrump, Barstow, and the Morongo Basin; 109 to 113 in Baker, Laughlin, Needles, and Lake Havasu City; and 117 to 122 at Dumont Dunes