Flagstaff, Arizona – Thunderstorms could roll through Flagstaff by late Tuesday morning, bringing lightning, gusty winds, and a sharp uptick in summer heat. Drivers on I-17 and I-40 should plan around potential wet roads and fast-moving storms during midday travel.
According to the National Weather Service, a 20% chance of showers and thunderstorms begins after 11 a.m. Tuesday, with a high near 89°F. Winds from the southwest may gust up to 18 mph, pushing storm cells through Coconino County. Though the storm threat remains low, the timing overlaps with peak heat, increasing risks for dehydration and reduced visibility.
Conditions will quiet down Tuesday night, staying mostly clear with a low near 59°F. On Wednesday, another 20% chance of storms returns after 11 a.m., and Flagstaff’s high will rise to 91°F — one of the hottest days of the week.
By Thursday, sunny skies dominate, but heat and wind increase, with gusts reaching 28 mph. Friday looks similar, with more sunshine, a high of 89°F, and west winds up to 25 mph. Another round of isolated storms is possible Saturday and Sunday, with daytime highs still hovering in the upper 80s.
⚠️ Tip: Drink extra water, avoid peak afternoon sun, and secure outdoor gear as winds pick up later this week.
🔎 5-Day Flagstaff Forecast (July 8–13):
- Tuesday: High 89°F – 20% chance of storms after 11 a.m.
- Wednesday: High 91°F – 20% chance of storms after 11 a.m.
- Thursday: Sunny, high 91°F – Wind gusts to 28 mph
- Friday: Sunny, high 89°F – Breezy with 25 mph gusts
- Saturday: High 89°F – 20% storm chance after 11 a.m., warm and breezy
