Flagstaff, Arizona – Gusty winds and scattered thunderstorms could disrupt travel and outdoor plans in Flagstaff starting Wednesday, with summer weather alerts continuing through the July 4th weekend. Conditions may become hazardous along I-40 as storm activity builds midweek, posing safety concerns for holiday travelers.
According to the National Weather Service, showers and thunderstorms are likely after 8 a.m. Wednesday with wind gusts reaching up to 30 mph. A 50% storm chance continues into Wednesday night, tapering slightly Thursday before picking up again Thursday night. These storms could bring brief downpours, lightning, and localized flooding.
Flagstaff residents and visitors should delay non-essential travel during peak storm hours and secure outdoor equipment before winds increase. Those heading to parks or fireworks events should monitor updates and have backup indoor plans.
Temperatures will stay moderate this week, peaking near 80°F on Independence Day. While Friday looks dry, winds will persist with gusts near 26 mph. If you’re planning to camp or BBQ, prepare for cooler nights and bring extra layers.
The region trends warmer over the weekend, with sunny skies and highs in the mid-80s by Sunday. Wind gusts remain a concern through at least Sunday night.
Five-Day Forecast: Flagstaff, AZ
- Wednesday (July 2): High 79°F – Chance of storms after 8 a.m.; gusts up to 30 mph
- Thursday (July 3): High 77°F – 30% chance of afternoon storms; breezy into evening
- Friday (July 4): High 80°F – Mostly sunny and breezy; gusts to 26 mph
- Saturday (July 5): High 83°F – Sunny; southwest wind up to 23 mph
- Sunday (July 6): High 85°F – Warmer, breezy, with a 10% storm chance
