Phoenix, Ariz. – Triple-digit heat and a midweek storm threat collide Wednesday as Phoenix braces for highs near 100 degrees with a chance of late-day thunderstorms. The timing could create slick evening commutes across central Arizona, especially along I-10 and Loop 202, where sudden downpours reduce visibility.
According to the National Weather Service in Phoenix, Wednesday’s storm risk peaks after 11 a.m., with scattered showers and thunderstorms possible through the evening. Winds will shift west by nightfall, holding temperatures in the mid-80s overnight. Residents should prepare for fast-changing conditions, charge devices in case of power outages, and avoid travel during heavy rainfall.
Thursday brings partly sunny skies with highs around 101, while Friday heats up to 104 under clear, dry conditions. The warmup builds into Labor Day Weekend, with highs topping 105 on Sunday and Monday, posing risks for outdoor events and road travel. Hydration and shaded breaks remain critical for anyone celebrating outdoors.
The summer weather alert extends into the weekend, when storm chances briefly return Monday afternoon. With holiday traffic expected, drivers should monitor conditions and plan for sudden weather shifts that can complicate long-distance travel.
More advisories may be issued if storm chances expand later in the week.
Five-Day Forecast for Phoenix, AZ
- Wednesday (Aug. 27): High 100, storm chance after 11 a.m. Overnight low near 84.
- Thursday: Partly sunny, high 101. Overnight low near 83.
- Friday: Sunny, high 104. Overnight low near 83.
- Saturday: Sunny, high 106. Overnight low near 85.
- Sunday (Labor Day Weekend): High 105, storm chance by afternoon. Overnight low near 86.
