Arizona – Headlights cut through cold mountain air as clouds thicken over northern Arizona. The calm, clear start fades fast, and Flagstaff’s winter weather story turns active.
Flagstaff begins the morning near the upper 20s with clear skies and light winds. By midday, clouds increase and temperatures climb into the upper 50s. That warmth is short-lived. According to the National Weather Service, a series of Pacific systems will bring widespread showers beginning tonight and lasting through Christmas.
Rain develops first, then intensifies Wednesday with gusty southwest winds. Showers remain likely through the day and into Wednesday night, keeping roads wet and visibility reduced. Winds may gust over 25 mph at times, especially along I-40 and Highway 89, creating difficult travel for high-profile vehicles.
By Christmas Day, colder air settles in. Showers continue, and a rain-to-snow mix becomes more likely by evening. While early snow accumulation appears limited, temperatures hover near freezing at night. That raises concerns for slick pavement, especially after sunset when wet roads refreeze.
Thursday night and Friday bring the highest winter travel concerns. Rain and snow showers remain possible, with breezy conditions lingering. Even light snow can create hazardous driving in Flagstaff’s higher elevations. Bridges, ramps, and shaded stretches may ice quickly, increasing the risk of spin-outs and delays.
Post-Christmas travel on Friday could be impacted by lingering snow showers and gusty winds. Travelers should plan extra time, slow down, and check road conditions before heading out. Winter tires and emergency kits are strongly recommended for mountain routes.
The unsettled pattern continues into the weekend with additional snow chances. Winter is asserting itself across northern Arizona, and conditions may change rapidly.
Traveling through Flagstaff later this week? What are road conditions looking like where you are?
Five-Day Weather Outlook for Flagstaff, Arizona
- Today: Increasing clouds, high near 58
- Wednesday: Showers and wind, high near 50
- Christmas Day: Showers, rain mixing with snow late, high near 48
- Friday: Rain and snow showers, breezy, high near 46
- Saturday: Chance of snow showers, colder, high near 43





