Excessive Heat Watch Expands Across Arizona, Southwest

The Southwest is experiencing a significant heatwave with Phoenix temperatures soaring above 100 degrees throughout the week, peaking at around 114 degrees midweek, according to the National Weather Service. Tucson is also under an excessive heat watch, with highs reaching up to 110 degrees on Wednesday, indicating a widespread pattern of extreme heat across the region. Southern Nevada is facing similar conditions, with temperatures expected to climb steadily through Wednesday before a brief cooldown next week, though heat advisories and extreme UV levels are anticipated. New Mexico is heating up as well, with high temperatures rising and scattered thunderstorms developing, especially around mountain areas, which could bring localized heavy rain and flash flooding risks. Residents across these states are being urged to prepare for the heat by staying hydrated and limiting outdoor activities during peak hours. Meanwhile, the Arizona Diamondbacks are navigating a demanding 17-game stretch amid the heat, including upcoming games against the Royals, Padres, and Angels before the All-Star break.