Flagstaff, Arizona – Flagstaff residents should prepare for a shift in weather starting Tuesday as daily chances for afternoon thunderstorms build through the end of the week, accompanied by gusty winds and minor cooling.
According to the National Weather Service in Flagstaff, isolated showers could begin as early as Tuesday afternoon, with a 10% chance of storms after 11 a.m. The chance increases to 30–40% by midweek, especially Wednesday and Thursday afternoons. Winds will also strengthen, with gusts reaching 21 to 25 mph during stormier periods.
While today and Monday remain dry and sunny with highs around 89°F, the return of monsoon moisture may cause localized downpours and brief travel disruptions on roads like I-17 and U.S. 180. Motorists should be alert for sudden visibility reductions and avoid low-lying areas where water may pool.
Flagstaff USD and other local services are not expected to see closures, but outdoor events may face interruptions later in the week. Keep phones charged and plan for brief power flickers or lightning delays.
Rain and thunder chances remain in the forecast through at least Friday, with more updates expected by midweek if storm coverage expands.
Five Day Forecast for Flagstaff, AZ:
- Monday: Sunny, high 88°F. Gusts up to 18 mph.
- Tuesday: 10% chance of storms after 11 a.m. High 89°F, gusts to 21 mph.
- Wednesday: 30% chance of storms, high 91°F. Wind gusts to 19 mph.
- Thursday: 40% chance of storms. High 91°F, breezy.
- Friday: 40% chance of showers and storms, high 86°F. Gusts to 21 mph.
