Weather Alerts For Sun Valley, AZ

# HEADLINE -------------------- HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST /9 PM MDT/ MONDAY # DETAILS -------------------- WHAT Temperatures up to 105 degrees expected. WHERE Little Colorado River Valley and the lower elevations of Navajo Nation in Arizona; including the Kaibito Plateau, Painted Desert, and Chinle Valley. WHEN Until 8 PM MST /9 PM MDT/ Monday. IMPACTS Pets, livestock, and those sensitive to heat, such as the homeless, elderly, and children will be at risk for heat-related illnesses. Those without effective cooling and/or adequate hydration will be at the greatest risk. ISSUED AT Sunday, August 2, 2026 at 10:11 PM MST ISSUED BY National Weather Service Flagstaff AZ 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 action when you see symptoms of heat exhaustion and heat stroke. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. # AREAS AFFECTED -------------------- Little Colorado River Valley in Coconino County, Chinle Valley, Little Colorado River Valley in Apache County, Little Colorado River Valley in Navajo County, Northeast Plateaus and Mesas Hwy 264 Northward, Northeast Plateaus and Mesas South of Hwy 264 Including the cities of Keams Canyon, St. Johns, Holbrook, Chinle, Kayenta, Chambers, Wupatki National Monument, Snowflake, Canyon De Chelly, Tuba City, Kykotsmovi, Dilkon, Winslow, Kaibito, and Springerville