Phoenix hits a dangerous 113°F today under a National Weather Service Extreme Heat Warning, with sunny skies, a heat index near 114, and only a slight cooldown to 111 by afternoon — so plan errands for early morning and stay indoors during peak hours.
Today’s Setup
The stubborn high-pressure ridge parked over the Southwest is finally starting to weaken, per the NWS Phoenix office, but not fast enough to spare us today or Tuesday. Both days carry highs above 110 with heat index values in the 110-115 range. Winds stay light out of the west-southwest at 0 to 15 mph, so at least there’s no dust in the morning air.
Best Window To Be Outside
If you’re hiking Camelback or South Mountain, sunrise to around 8 AM is your only safe window — pavement and trail rock hold dangerous heat well into the evening. Errands, dog walks, and yard work should happen before 9 AM or after 8 PM once the sun is low. Overnight lows only bottom out around 91°F, so there’s little relief even after dark.
Rain, Wind, Fire, Or Heat Risk
Forecasters say moisture is finally increasing across southern Arizona, and elevated instability could bring gusty winds and blowing dust to the south-central lower deserts this evening — classic haboob setup territory. Monday night winds could gust to 35 mph out of the south. Rain chances stay low (near 6%) for the Phoenix metro itself, though the Weather Prediction Center flags a slight risk of excessive rainfall for far southern Arizona — worth watching if you’re heading that direction.
What To Wear Or Bring
Lightweight, breathable layers and constant hydration are non-negotiable. A UPF 50+ Sun Hoodie for $5 is a smart grab for anyone outside for extended stretches, and men’s sport sandals keep feet cool on quick outdoor stops. Keep an insulated tumbler 30oz filled with ice water in the car — cabin temps climb fast in this heat.
Diamondbacks Baseball And Concerts This Week
The Arizona Diamondbacks host the San Diego Padres at Chase Field Tuesday through Thursday (Aug. 4-6) — grab an Arizona Diamondbacks jersey or Arizona Diamondbacks fitted cap to rep the team, and find tickets on StubHub if you’re heading down. Later this week, Don Toliver brings his Octane World Tour to Desert Diamond Arena on Aug. 6, and Les Miserables opens at Phoenix Theatre’s Stephenson Theatre Aug. 7 — both indoor venues, a relief from outdoor heat. Kali Uchis plays the outdoor Talking Stick Resort Amphitheatre Aug. 7, so get tickets on SeatGeek and plan for lingering evening warmth.
Dinner Tonight
With highs like these, skip the stove. A cold Thai noodle salad or a build-your-own wrap bar keeps the kitchen cool, and a high-powered blender turns fruit into smoothie bowls in minutes. Need ingredients? You can order groceries on Amazon and have everything for tonight’s dinner delivered to your door.
Next Few Days
Tuesday holds near 111°F with the Extreme Heat Warning still active, and monsoon moisture keeps building into midweek, raising storm and dust chances across eastern Arizona’s high terrain and possibly spilling into the valley by evening. Expect hot, humid conditions to stick around for the rest of the week.
