Flagstaff, Ariz. – Thunderstorms will return to northern Arizona this week as daytime heat builds into the 90s and unstable air sparks afternoon and evening storms through the weekend. Drivers across Coconino County should expect slick roads, sudden downpours, and gusty winds.
According to the National Weather Service in Flagstaff, a 10 percent chance of showers develops Tuesday afternoon with areas of wildfire smoke hanging in the morning hours. Rain chances rise to 40 percent by Wednesday and peak Friday and Saturday, when coverage is expected to be more widespread.
Thursday brings a likely period of storms after 11 a.m., with rainfall potentially cooling road surfaces but also creating low visibility in heavier bursts. Winds will strengthen to 15 mph with gusts reaching 20 mph by Friday, increasing the hazard for high-profile vehicles along I-40 and U.S. 89.
Residents are urged to prepare for sudden weather shifts, especially in the late afternoons. Keep devices charged in case of power outages, and avoid driving through flooded washes. Outdoor recreationists in the San Francisco Peaks and Oak Creek Canyon should be ready to move quickly to shelter if lightning develops.
Storm chances remain in place into early next week, keeping the region in an active monsoon cycle.
Five Day Forecast for Flagstaff, AZ
- Tuesday: High near 91°F, 10% chance of storms, smoky morning.
- Wednesday: High 91°F, 40% chance of storms, breezy with gusts up to 16 mph.
- Thursday: High 91°F, storms likely after 11 a.m.
- Friday: High near 90°F, 70% chance of storms, gusts near 20 mph.
- Saturday: High 87°F, 50% chance of storms, cooler trend begins.
