Flagstaff, Arizona – Thunderstorms could develop by late Monday morning across northern Arizona, bringing gusty winds and the first in a string of summer storm chances this week.
According to the National Weather Service, Flagstaff has a 20% chance of showers and thunderstorms after 11 a.m. on Monday, July 28th, with highs reaching 88°F and southwest winds gusting as high as 21 mph. While Monday’s storm potential remains slight, the chance increases significantly by Tuesday and continues through Thursday.
Drivers should use caution on I-40 and U.S. Route 89, where brief downpours may reduce visibility or lead to hydroplaning. Wind gusts could also create challenges for high-profile vehicles. Outdoor activities should be wrapped up by late morning Monday due to the elevated risk of lightning.
By Tuesday, thunderstorm chances rise to 30% after 11 a.m., with similar winds and slightly cooler temps around 87°F. Nighttime storms are also possible Tuesday and Wednesday, particularly between 5 p.m. and 11 p.m., raising concerns for evening travel.
🔭 Extended Five-Day Forecast: Flagstaff, AZ
- Monday, July 28: Slight chance of thunderstorms after 11 a.m. High near 88°F. Breezy with gusts up to 21 mph.
- Tuesday: 30% chance of storms after 11 a.m. High 87°F. Showers likely into the night.
- Wednesday: 30% chance of storms during the day and night. High 84°F. Lows in the low 50s.
- Thursday: 40% chance of storms mainly after 11 a.m. High near 83°F. Winds up to 18 mph.
- Friday: 40% chance of storms. High 83°F. Gusts up to 23 mph. More showers into Saturday.
Stay weather-aware. More advisories are possible if storm coverage expands midweek.
