Flagstaff, AZ – The high desert air feels sharp and still this morning as temperatures across northern Arizona hover near the mid-20s, signaling a cold, clear stretch for the mountain city of Flagstaff. The crisp calm hides frost on windshields, and breath turns visible as winter’s grip tightens through Monday morning.
According to the National Weather Service in Flagstaff, skies will stay sunny and dry through early next week. Highs will reach the low-to-mid 50s each day, but overnight lows near 25°F will keep mornings icy, especially in canyons and shaded mountain roads. Winds may gust up to 20 mph at times but will remain mostly light — enough to enhance the chill before dawn.
Drivers should use caution on I-40 and local roadways, where early-morning frost can create slick spots, particularly near bridges and open stretches west toward Williams. Though no snow is in the near-term outlook, meteorologists remind residents this is prime “flash-freeze” season — when daytime melting refreezes by evening, producing unexpected icy patches.
By Tuesday, temperatures will begin to climb modestly, with highs nearing 59°F by Tuesday and low 60s midweek, making for a gradual thaw ahead of a milder December stretch. Still, cold nights will linger across higher terrain.
Five-Day Outlook (Flagstaff, AZ)
Sunday: Sunny, high 53°F, low 26°F.
Monday: Sunny, high 53°F, low 28°F.
Tuesday: Sunny, high 59°F, low 31°F.
Wednesday: Sunny, high 62°F, low 34°F.
Thursday: Sunny, high 62°F, low 32°F.
