Tuesday kicked off with Phoenix under mostly clear skies and a mild 63°F, paired with low humidity and barely a whisper of wind. With plenty of sun on tap, the Valley is set to warm quickly, with afternoon highs headed for the mid‑80s today. Overnight lows will hold in the upper 50s to mid‑60s through midweek, keeping evening plans solidly in the “comfortable” zone.
What To Expect This Week
Temperatures will step up day by day: highs near 86°F Tuesday, edging into the upper 80s on Wednesday, then breaking into the 90s by Friday. The weekend looks hotter still, with readings topping out in the mid‑90s and potentially reaching around 98°F on Sunday.
Winds should stay mostly light, although some neighborhoods exposed to the breeze could see afternoon gusts up to 20 mph on Saturday and Sunday. Relative humidity will dip into the teens today and Wednesday, which will ramp up daytime heat stress and limit how much the air can recover overnight. Those trends, along with a slight (about 20%) chance of isolated showers on Thursday, line up with the latest guidance from the National Weather Service.
Heat Relief and Safety
City cooling centers and hydration sites are ready as temperatures climb, offering air‑conditioned relief for those who need a place to cool off. Residents looking for nearby options can use the Heat Relief Network to track down locations. Common‑sense steps still matter: drink plenty of water, skip strenuous activity during the hottest afternoon hours, and check on neighbors who might be more vulnerable. For specific locations and hours, see the City of Phoenix Heat Relief resources.
Plan Ahead
No watches or warnings are currently in effect for the Valley, but the combination of dry air and rising temperatures means it will feel hotter than the thermometer suggests, especially during afternoon outdoor work or events. Before heading out, keep tabs on short‑range forecasts and any emergency alerts from the National Weather Service.
