Phoenix, Arizona – Expect blistering sunshine and dangerously high temperatures in Phoenix as Monday’s heat index pushes back above 109°F, followed by a midweek storm threat that could disrupt travel across Maricopa County.
According to the National Weather Service, light winds will pick up Monday afternoon with gusts up to 20 mph. These dry, breezy conditions will raise the risk of heat-related illnesses — especially for outdoor workers and vulnerable groups. Residents should limit afternoon activity, hydrate regularly, and avoid prolonged sun exposure.
Monday night will remain warm with lows near 87°F and increasing humidity. A 20 percent chance of thunderstorms arrives Tuesday afternoon and night, potentially bringing gusty winds, lightning, and brief downpours along the I-10 corridor. While rainfall totals are expected to stay under a quarter inch, isolated higher amounts are possible, especially during thunderstorms on Wednesday and Thursday nights.
Phoenix 5-Day Forecast:
- Monday (109°F / 87°F): Sunny and hot, breezy afternoon
- Tuesday (108°F / 85°F): Slight chance of late-day storms, windy
- Wednesday (103°F / 83°F): 20% chance of storms, partly sunny
- Thursday (100°F / 82°F): 50% chance of thunderstorms, mainly PM
- Friday (100°F / 81°F): Afternoon storms possible, muggy
Prepare for a dynamic weather week — stay weather-aware and monitor updates, especially as storm chances increase midweek.
