Flagstaff, Ariz. – The first hint of winter lingers in the chill this morning. Crisp air pools in the pines, each breath visible in the thin mountain light. Flagstaff’s weather stays calm and cool to start the week, but subtle shifts signal that autumn’s steady hand may tighten its grip by midweek.
The National Weather Service in Flagstaff reports a low of 34°F to begin Monday, keeping early risers bundled as sunshine works to warm the day toward 69°F. Skies stay clear through Tuesday, when highs reach near 71°F under light winds. Mornings remain cold, dipping into the upper 30s and low 40s, a reminder that a First Fall Freeze isn’t far off for higher elevations north of town.
By Wednesday, a quick-moving system could brush northern Arizona with a 20% chance of light showers and gusts up to 26 mph. Any rain should stay brief, but slick spots are possible on I-40 and Route 66, especially during early commutes. It’s a modest system — more a whisper of the colder air still lurking over the Rockies — but it marks a turning point.
Highs fall to the low 60s Thursday before climbing again to mid-60s and near 70°F by the weekend. The return of dry air and calm breezes will make Friday through Sunday ideal for travel, football games, or early Halloween events.
Flagstaff’s fall rhythm is settling in — warm sun by day, biting air by dawn — and soon enough, that first light frost could glisten across rooftops once again.
Five-Day Outlook for Flagstaff, AZ:
Mon: 69/34 – Sunny, cool start.
Tue: 71/43 – Mostly sunny, calm.
Wed: 68/35 – Breezy, light showers possible.
Thu: 61/35 – Sunny, cooler.
Fri: 64/38 – Sunny, warming trend.
