Phoenix, Ariz. – Patriot Day events on Thursday will take place under triple-digit heat as Phoenix braces for highs near 108°F. Residents attending outdoor ceremonies should stay hydrated, wear light clothing, and limit direct sun exposure. Drivers on I-10 and I-17 are urged to prepare for overheated vehicles and increased roadway incidents during peak afternoon heat.
According to the National Weather Service, temperatures in Phoenix will climb to 108°F Thursday afternoon before gradually easing into the upper 90s this weekend. Winds remain light, though occasional gusts up to 20 mph could add to dry conditions. The lack of cloud cover leaves little relief for outdoor gatherings or commutes.
By Thursday night, lows will dip to 76°F, offering only modest relief. Friday brings a high near 99°F, while Saturday will hold steady around 97°F. Fire danger also lingers in surrounding desert areas, where dry brush and steady breezes could elevate risks. Public safety officials recommend avoiding strenuous outdoor activity between 11 a.m. and 5 p.m.
The prolonged heat may complicate Patriot Day memorial events across Maricopa County, including downtown Phoenix. Attendees should carry water and seek shade whenever possible. Those traveling by car should check coolant levels, charge mobile devices, and allow extra time for delays.
The heat trend will continue into early next week, with highs near 101°F by Tuesday. Weather officials caution that September heat remains a public safety threat across the Valley. More advisories could follow if conditions worsen.
Five Day Forecast for Phoenix, Arizona
- Thursday: Sunny, high 108°F, low 76°F.
- Friday: Sunny, high 99°F, low 74°F.
- Saturday: Sunny, high 97°F, low 74°F.
- Sunday: Sunny, high 102°F, low 75°F.
- Monday: Mostly clear, high 100°F, low 77°F.
