Flagstaff, Arizona – Scattered thunderstorms could sweep into Flagstaff by late Tuesday morning, bringing gusty winds, lightning, and brief downpours just as summer heat peaks.
According to the National Weather Service in Flagstaff, there’s a 20% chance of showers and thunderstorms after 11 a.m. on Tuesday, July 29th, with high temperatures climbing to 88°F. Winds will shift from the southwest at 5 to 9 mph and may gust up to 16 mph. Residents and travelers along Interstate 17 and Highway 180 should prepare for sudden visibility drops and wet pavement, especially during midday and afternoon hours.
Tuesday’s storm threat is limited but could still impact afternoon travel, hiking, or outdoor activities across Coconino County. It’s wise to reschedule any backcountry plans or secure loose gear ahead of time. No severe weather is expected, but dry lightning and isolated downpours remain possible.
The midweek pattern stays unsettled, with 20% storm chances persisting Wednesday and Thursday. Daytime highs remain in the mid-80s before a subtle cooling trend arrives Friday as storm coverage increases again.
🌤️ Flagstaff 5-Day Weather Outlook: July 29 – August 3
- Tuesday, July 29:
88°F and mostly sunny, slight storm chance after 11 a.m. - Wednesday, July 30:
86°F, partly cloudy with isolated afternoon storms. - Thursday, July 31:
83°F with a 40% chance of thunderstorms, especially after 11 a.m. - Friday, August 1:
83°F, more active pattern with 20% storm coverage by afternoon. - Saturday–Sunday (August 2–3):
Weekend stays warm near 85°F with 30% daily storm chances and gusts to 23 mph — watch for wet roads and lightning risks.
⚠️ More alerts may follow later this week as monsoon moisture builds. Stay tuned for updates and avoid hiking during peak storm hours (2–6 p.m.).
