Flagstaff, AZ – The morning air feels crisp and thin across the San Francisco Peaks as Flagstaff wakes to 27°F and clear skies. It’s calm now — the kind of bright, cold stillness that often precedes a weather change — but meteorologists say winter’s first tease is on the way by Sunday.
According to the National Weather Service, today and Saturday remain mostly sunny with highs in the mid-50s and lows in the 20s. By Sunday, a weak system sliding through northern Arizona brings a slight chance of rain and snow, particularly during the afternoon and evening hours. While accumulations are expected to stay light, slick conditions may develop on U.S. 180, I-40, and along the Mogollon Rim as temperatures fall below freezing by night.
Sunday’s high hovers near 49°F before dropping to the low 20s — the coldest stretch since early fall. Calm conditions return Monday with sunshine and a high around 44°F, followed by gradual warming into the upper 40s by midweek.
Meteorologists describe this weekend as an early “December preview,” hinting at a broader cold push across the western U.S. next week. That front could strengthen into a larger winter pattern bringing colder-than-normal air and higher snow chances to the Rockies and High Plains.
Bundle up, Flagstaff — the season’s first real chill is setting in.
Traveling on I-40 or U.S. 89 this weekend? Tell us what conditions you’re seeing.
Five-Day Outlook for Flagstaff, AZ:
- Friday: Sunny, high 57°F; low 25°F.
- Saturday: Sunny, high 53°F; low 24°F.
- Sunday: Chance of rain/snow, high 49°F; low 23°F.
- Monday: Sunny, high 44°F; low 18°F.
- Tuesday: Sunny, high 49°F.
