Hourly Weather | Today Tuesday, April 7, 2026
Flagstaff, Arizona
3 PM
Cloudy Weather
68°
Feels Like 72°
7
Humidity: 16%
UV Index: 4
Wind: 7 mph
4 PM
Cloudy Weather
66°
Feels Like 68°
7
Humidity: 16%
UV Index: 3
Wind: 7 mph
5 PM
Cloudy Weather
64°
Feels Like 64°
7
Humidity: 17%
UV Index: 2
Wind: 8 mph
6 PM
Sunny Weather
63°
Feels Like 61°
5
Humidity: 18%
UV Index: 0
Wind: 7 mph
7 PM
Night
59°
Feels Like 57°
0
Humidity: 23%
UV Index: 0
Wind: 7 mph
8 PM
Night
54°
Feels Like 52°
0
Humidity: 28%
UV Index: 0
Wind: 6 mph
9 PM
Night
52°
Feels Like 48°
0
Humidity: 32%
UV Index: 0
Wind: 6 mph
10 PM
Night
48°
Feels Like 45°
0
Humidity: 37%
UV Index: 0
Wind: 6 mph
11 PM
Night
45°
Feels Like 43°
0
Humidity: 42%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

3 PM
72 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.4 µg/m³
  • PM10: 13.72 µg/m³
  • O3: 0.061 ppm
  • NO2: 0.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

4 PM
77 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.49 µg/m³
  • PM10: 13.95 µg/m³
  • O3: 0.063 ppm
  • NO2: 0.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

5 PM
79 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.6 µg/m³
  • PM10: 14.26 µg/m³
  • O3: 0.063 ppm
  • NO2: 0.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

6 PM
80 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.69 µg/m³
  • PM10: 14.58 µg/m³
  • O3: 0.064 ppm
  • NO2: 0.5 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

7 PM
78 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.97 µg/m³
  • PM10: 15.32 µg/m³
  • O3: 0.063 ppm
  • NO2: 0.8 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

8 PM
72 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.44 µg/m³
  • PM10: 16.54 µg/m³
  • O3: 0.061 ppm
  • NO2: 1.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.10 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

9 PM
67 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.01 µg/m³
  • PM10: 18.1 µg/m³
  • O3: 0.060 ppm
  • NO2: 1.5 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

10 PM
55 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.51 µg/m³
  • PM10: 18.85 µg/m³
  • O3: 0.056 ppm
  • NO2: 1.8 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

11 PM
47 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.96 µg/m³
  • PM10: 19.34 µg/m³
  • O3: 0.051 ppm
  • NO2: 2.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.12 ppm

Health Recommendations:

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