Phoenix is baking under sunny skies and a 115°F high today, with the National Weather Service’s Extreme Heat Warning running region-wide through Monday — so if you’ve got errands, hikes, or yard work on the list, get them done before 8 AM or after sunset, and keep water within reach all day.
Today’s Setup
The overnight low only bottomed out near 90, and forecasters note the atmosphere over the desert right now is about as hot as it gets, with upper-level heights tying for some of the highest readings on record at Flagstaff. That translates to a 115°F afternoon with heat index values near 114, light southwest wind at 0 to 10 mph, and essentially zero rain chance. Sunday looks nearly identical near 113, before the ridge eases slightly and Monday’s highs drop 1 to 3 degrees — still dangerously hot, just marginally less extreme.
Best Window To Be Outside
Morning is your only real window. If you’re walking the dog, hitting South Mountain, or heading up Camelback, plan to be off the trail well before 9 AM — surface temps climb fast after that. Evenings after 7 PM offer a second, shorter window, though it’ll still be near 100°F with lows only easing into the low 90s overnight.
Extreme Heat Risk
The NWS is flagging Major to Extreme HeatRisk across all of Phoenix, meaning the entire population — not just sensitive groups — faces real health risk from this heat. Check on elderly neighbors, never leave kids or pets in cars, and treat any dizziness or nausea outdoors as a heat-emergency warning sign.
What To Wear Or Bring
Light, breathable layers and real hydration gear matter today. A pair of men’s sport sandals or a women’s swimsuit for pool time beats closed shoes, and quick dry swim trunks are a smart grab if you’re cooling off at a splash pad this afternoon. Keep an insulated tumbler 30oz filled and with you constantly — it’s the single easiest way to stay ahead of dehydration in 115°F heat.
Games, Shows & Dinner Plans
Escaping indoors tonight? Les Miserables is on stage at Phoenix Theatre-AZ, and our in-depth look at the show has more details. Looking ahead, the Arizona Diamondbacks host the San Diego Padres at Chase Field on August 4 — the AFD notes extreme heat persists into early next week, so tailgating outside the dome will still mean serious heat precautions. Grab an Arizona Diamondbacks jersey or Arizona Diamondbacks fitted cap and check tickets on StubHub. Don Toliver also swings through Desert Diamond Arena on August 6 — read our tour coverage and pick up a Don Toliver t-shirt if you’re going.
For dinner, it’s too hot to fire up the stove — a cold Thai noodle salad or a smoothie bowl works better than anything from the oven. A high-powered blender makes quick work of either. Need ingredients? You can order groceries on Amazon and have everything for tonight’s dinner delivered to your door. For sun gear, check out our outdoor gear deals, including a UPF 50+ sun hoodie deal worth grabbing before your next morning walk.
Next Few Days
Sunday holds near 113°F with continued sun, and Monday brings modest relief as highs ease a few degrees — though the Extreme Heat Warning remains in effect through Monday. The NWS expects drier air to keep storm chances confined to far southeastern Arizona through early next week, with better shower and thunderstorm odds returning to south-central Arizona later in the week.
