Weather Alerts For Barstow, CA

# HEADLINE -------------------- EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT /8 PM MST/ THIS EVENING # DETAILS -------------------- WHAT Dangerously hot conditions expected through today, with temperatures up to 115 to 118 across Death Valley and the Colorado River Valley; up to 108 to 112 across Moapa Valley, the Las Vegas Valley, the Pahrump Valley, and the Morongo Valley; up to 90 to 95 in the Hualapai Mountains. Overnight lows will be in the upper-80s to low-90s for desert valleys. WHERE Portions of northwest Arizona, southeast California, and southern Nevada. WHEN Until 8 PM PDT /8 PM MST/ this evening. IMPACTS Heat-related illnesses increase significantly during extreme heat events. ISSUED AT Friday, August 28, 2026 at 4:22 AM PDT ISSUED BY National Weather Service Las Vegas NV HEADER URGENT - WEATHER MESSAGE # PRECAUTIONARY/PREPAREDNESS ACTIONS -------------------- Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take extra precautions when outside. Wear lightweight and loose-fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. Monitor the latest forecasts and warnings for updates. # AREAS AFFECTED -------------------- AZ side, AZ side, Cadiz Basin, Northeast Clark County, NV side, NV side, Death Valley National Park, Eastern Mojave Desert, Hualapai Mountains, Lake Havasu and Fort Mohave, Lake Mead , Lake Mead , Lake Mohave , Lake Mohave , Las Vegas Valley, Morongo Basin, Northwest Deserts, San Bernardino County, Southern Clark County, Upper Colorado River Valley, Western Clark and Southern Nye County, Western Mojave Desert Including the cities of Topock, Desert Rock, Pahrump, Bullhead City, Golden Valley, Lake Havasu City, Daggett, Searchlight, Primm, Indian Springs, Yucca, Barstow, Shoshone, Dolan Springs, Overton, North Las Vegas, Wikieup, Moapa, Amargosa Valley, Baker, Stovepipe Wells, Hoover Dam, Fort Irwin, Boulder City, Henderson, South Cove, Twentynine Palms, Desert Hills, Needles, Temple Bar, Mesquite, Cal-Nev-Ari, Valentine, Las Vegas, Mitchell Caverns, Laughlin, Hualapai Peak, Yucca Valley, Kingman, Vidal Junction, Morongo Valley, Furnace Creek, and Mountain Pass