Phoenix, AZ – Arizona drivers should prepare for shifting conditions Monday as storms threaten Phoenix with showers and thunderstorms rolling into the Valley. The Monday evening commute could see slick pavement on I-10 and I-17 as brief downpours and lightning pass through the region.
According to the National Weather Service in Phoenix, a 30 percent chance of showers and thunderstorms develops Monday night, mainly after 11 p.m. The system follows a weekend stretch of hot, sunny days, where highs climb near 101 degrees both Saturday and Sunday.
Phoenix residents can expect a cooler Monday high near 97 before storm chances build. Winds will remain light but could gust higher near storms, reducing visibility on roads. NWS cautions drivers to slow down on wet pavement and avoid flooded underpasses, especially in low-lying areas.
By Tuesday, storm chances taper off early, leaving another hot afternoon with highs near 101 under mostly sunny skies. Overnight lows stay mild in the low 80s, keeping overnight cooling limited across the Valley.
Residents should keep devices charged and outdoor items secured in case of gusty winds Monday night. While widespread flooding is not expected, ponding water may affect travel on major freeways and surface streets.
Storm chances diminish midweek, with a return to mostly sunny skies and more seasonable highs in the mid-90s by Thursday and Friday. Still, lingering showers in eastern Arizona could drift west if the system slows.
Warnings remain possible if storms strengthen, with updates expected from NWS as the system develops.
Five Day Forecast for Phoenix, AZ
- Sunday: Mostly sunny, high near 100. Calm wind becoming northwest 5 mph in the afternoon.
- Monday: 20–30% chance of storms, high near 97. Evening showers and thunder possible.
- Tuesday: Mostly sunny, slight chance of storms before 11 a.m., high near 101.
- Wednesday: Mostly clear, high near 103. Winds light.
- Thursday: Partly cloudy, high near 95. Cooler and more seasonable.
