Phoenix is heading into a scorching Sunday with a high near 109°F — 3 to 8 degrees above mid-June norms — under clear skies and a light southwest wind of 0 to 10 mph. The entire Valley is under Moderate Heat Risk today. Get outdoor tasks done early and plan the rest of your day indoors. For daily updates all week, check the Phoenix weather forecast.
Best Window To Be Outside
Your outdoor window is before 9 AM. Hikers targeting Camelback Mountain or South Mountain need to be wrapping up before the sun gets high. Golfers, the forecast is clean if you tee off at first light — a golf push cart will save your legs so the heat doesn’t catch up with you on the back nine. Tonight’s “low” barely qualifies as relief: we drop to only around 85°F, with temps actually creeping back toward 87°F before sunrise. There is no cool-down overnight.
Heat and Storm Risk
The National Weather Service warns of Moderate Heat Risk with isolated pockets of Major Heat Risk through at least the middle of next week. On top of the brutal heat, forecasters note a 10–15% chance of a brief afternoon or evening thunderstorm over the foothills of Maricopa County today and again Monday. Outflow winds from distant storms could gust through with little warning after 2 PM MST. If you’re near the foothills later today, keep an eye on the western sky.
Events Tonight in Phoenix
Tonight is packed across the Valley. The Louis Tomlinson How Did We Get Here? World Tour stops at Mortgage Matchup Center — a great air-conditioned escape from the heat. The 2026 Xfinity US Gymnastics Championships is also at Mortgage Matchup Center tonight. Grab a Louis Tomlinson t-shirt and Get tickets on SeatGeek while seats are still available. The Arizona Rattlers also host Fishers Freight tonight at Desert Diamond Arena.
Looking ahead: the Arizona Diamondbacks open a home series against the Los Angeles Angels at Chase Field starting Monday, June 15, running through Wednesday, June 17. Snag an Arizona Diamondbacks jersey for the series and Find tickets on StubHub for any of those games.
Grill Smart Tonight
With temps near 85°F after dark, early evening is perfect for firing up the grill. Burgers, steaks, or grilled chicken with corn on the cob all shine on a night like this. An instant-read meat thermometer keeps everything food-safe and perfectly cooked, and a grill brush and scraper set keeps your grates clean between rounds. While you’re at it, beat the heat between cookouts — a 2-Person Intex Floating Lounge with Cooler Just $24 on Amazon was made for days like this. Browse more outdoor gear deals to stay comfortable all summer. Need ingredients? You can order groceries on Amazon and have everything for tonight’s dinner delivered to your door.
Next Few Days
Monday holds at near 108°F with mostly sunny skies and a slight 8–9% storm chance again over the foothills. The National Weather Service says this heat pattern — 3 to 8 degrees above normal — continues through at least mid-week. Drink water constantly, check on elderly neighbors, and save strenuous outdoor activity for the early morning hours. This is Phoenix summer — plan around the heat, not through it.
