Today | Weather | Saturday, April 4, 2026

Weather in Flagstaff, Arizona

04:07 AM
Now
Cloudy Night
30° F
Feels Like 21°
Precipitation 0 %
Wind 10 mph
Humidity 36 %
Today
Sunny Weather
Day 61°
Night 30°
Precipitation 0 %
Wind 15 mph
UV Index (0 - 11+) 9

Warning: High UV Index Today: 9

High risk of harm from unprotected sun exposure. Take precautions: wear a hat, sunglasses, and apply sunscreen regularly if you’ll be outdoors for extended periods.

Flagstaff Weather Forecast Updated

Last updated on

Air Quality in Flagstaff

NOW
48 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 0.69 µg/m³
PM10 2.62 µg/m³
O3 0.052 ppm
NO2 0.5 ppb
SO2 0.2 ppb
CO 0.11 ppm
NH3 3.09 µg/m³
NO 0 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.50.69 µg/m³
PM102.62 µg/m³
O3101.11 µg/m³
NO20.93 µg/m³
SO20.45 µg/m³
CO122.01 µg/m³
NH33.09 µg/m³
NO0 µg/m³