Arizona — Cold mountain air bites early this morning, crunching underfoot across Flagstaff as temperatures hover near 18 degrees. Clear skies give a calm start, but change is already queued up. Clouds increase through the day, and a more active winter pattern takes shape heading toward Friday and this weekend.
Today turns milder by afternoon. Increasing clouds mix with filtered sun, pushing highs into the mid-50s. Roads remain dry, though shaded areas stay slick from lingering frost. Tonight cools back into the lower 20s, setting the stage for winter weather concerns later in the week.
Thursday stays mostly cloudy, with highs again near 53 degrees. Winds remain light, but the air feels heavier. Meteorologists are tracking moisture arriving late Thursday night. That timing matters, especially for early commuters and evening travel.
By Friday, precipitation chances jump quickly. Rain and snow showers become possible, mainly from late morning into the afternoon. Highs reach the upper 40s, but temperatures fall fast after sunset. Expect a transition to mostly snow Friday night, with accumulating snow possible on untreated roads.
Travel impacts increase Friday night into Saturday. Snow showers turn more persistent, with 70 to 80 percent chances during the day Saturday. Highs drop to around 41 degrees, and gusty winds may reduce visibility at times. Plan extra travel time on I-40 and local mountain routes.
Saturday night stays cold, dipping near 15 degrees, allowing wet pavement to refreeze. Flash freezing becomes a concern after sunset. Sunday improves slowly, with sunshine returning and highs near 41, though icy patches may linger.
Looking ahead, the 6–10 day outlook shows Arizona leaning above normal for temperatures, suggesting Flagstaff warms again after this winter stretch.
Five-Day Outlook for Flagstaff, Arizona
Today: Increasing clouds, high near 54.
Thursday: Mostly cloudy, high near 53.
Friday: Chance rain and snow, high near 47.
Saturday: Snow showers likely, high near 41.
Sunday: Sunny, colder morning, high near 41.
