Arizona’s high country starts crisp and quiet, but temperatures swing fast, turning a near-freezing morning into a warm spring afternoon within hours.
According to the National Weather Service in Flagstaff, early temperatures dropped to around 33°F with calm winds and clear skies. That setup allows rapid warming, pushing highs near 82°F by mid-afternoon. This sharp 40-degree swing creates fast-changing road and surface conditions.
Across Flagstaff, especially along I-40 and Route 89, drivers may notice cold pavement early, followed by dry, warmer roads by midday. Layers are key. Expect chilly air at sunrise, then noticeably warmer conditions by lunchtime.
Sunday brings slightly cooler but still pleasant weather, with highs near 76°F under partly sunny skies. Winds increase at times, with gusts up to 20 mph adding a brisk feel.
By Monday, sunshine returns with highs around 75°F. Winds pick up again in the afternoon, with gusts near 24 mph. Dry air and breezy conditions may elevate fire weather concerns across northern Arizona.
Looking ahead to Tuesday, March 24, temperatures climb again near 79°F with sunny skies. Nights remain cool, dipping into the upper 30s, maintaining large day-to-night swings.
Meteorologists continue tracking a broader Southwest warming trend tied to high pressure. While deserts face extreme heat, Flagstaff sits in a milder but still dry pattern.
Plan for big temperature changes each day. Keep a jacket early, hydrate in the afternoon, and secure loose items in gusty winds.
Five Day Outlook for Flagstaff, Arizona:
Sunday: High 76°F, partly sunny
Sunday Night: Low 34°F, partly cloudy
Monday: High 75°F, sunny
Tuesday: High 79°F, sunny
Wednesday: High 80°F, sunny
