Phoenix, Arizona, experienced record-breaking high temperatures on July 9 and 10, 2025. On July 9, the temperature at Phoenix Sky Harbor International Airport reached 117 degrees Fahrenheit at 2:24 p.m., surpassing the previous daily record of 116 degrees set the year before. Later that day, the temperature climbed to 118 degrees, marking the hottest day of the year so far. This surge in heat also contributed to a record high energy demand in the city. On the morning of July 10, Phoenix recorded a record warm low temperature of 95 degrees, just two degrees shy of the all-time warmest low of 97 degrees recorded on July 19, 2023. Despite slightly lower temperatures expected through the weekend, highs are forecasted to remain in the high 90s to above 110 degrees Fahrenheit. An Extreme Heat Warning remains in effect for the Grand Canyon area below 4,000 feet elevation, with authorities advising residents and visitors to avoid strenuous activity during peak heat hours and to stay hydrated. The persistent dry weather and elevated temperatures continue to pose health risks, underscoring the importance of heat safety precautions.