Hourly Weather | Today › Tuesday, November 3, 2026
Active Weather Warnings
Flagstaff, Arizona
2 AM
Cloudy Night
32°
Feels Like 28°
0
Frost Risk: 76%
Humidity: 91%
UV Index: 0
Wind: 6 mph
3 AM
Cloudy Night
32°
Feels Like 28°
0
Frost Risk: 49%
Humidity: 85%
UV Index: 0
Wind: 7 mph
4 AM
Cloudy Night
32°
Feels Like 27°
0
Frost Risk: 49%
Humidity: 87%
UV Index: 0
Wind: 7 mph
5 AM
Cloudy Night
30°
Feels Like 27°
0
Frost Risk: 92%
Humidity: 88%
UV Index: 0
Wind: 7 mph
6 AM
Cloudy Night
30°
Feels Like 27°
0
Frost Risk: 96%
Humidity: 91%
UV Index: 0
Wind: 7 mph
7 AM
Cloudy Weather
30°
Feels Like 27°
0
Frost Risk: 97%
Humidity: 96%
UV Index: 0
Wind: 7 mph
8 AM
Cloudy Weather
34°
Feels Like 30°
0
Humidity: 91%
UV Index: 1
Wind: 7 mph
9 AM
Sunny Weather
39°
Feels Like 37°
0
Humidity: 77%
UV Index: 2
Wind: 8 mph
10 AM
Sunny Weather
46°
Feels Like 45°
0
Humidity: 64%
UV Index: 3
Wind: 9 mph
11 AM
Cloudy Weather
50°
Feels Like 52°
0
Humidity: 54%
UV Index: 4
Wind: 9 mph
12 PM
Cloudy Weather
54°
Feels Like 55°
0
Humidity: 48%
UV Index: 4
Wind: 9 mph
1 PM
Cloudy Weather
55°
Feels Like 57°
0
Humidity: 43%
UV Index: 4
Wind: 9 mph
2 PM
Cloudy Weather
57°
Feels Like 59°
0
Humidity: 40%
UV Index: 3
Wind: 8 mph
3 PM
Sunny Weather
55°
Feels Like 55°
0
Humidity: 43%
UV Index: 2
Wind: 8 mph
4 PM
Sunny Weather
55°
Feels Like 54°
0
Humidity: 49%
UV Index: 1
Wind: 8 mph
5 PM
Cloudy Weather
52°
Feels Like 48°
0
Humidity: 59%
UV Index: 0
Wind: 8 mph
6 PM
Cloudy Night
48°
Feels Like 45°
0
Humidity: 70%
UV Index: 0
Wind: 7 mph
7 PM
Cloudy Night
45°
Feels Like 41°
0
Humidity: 77%
UV Index: 0
Wind: 7 mph
8 PM
Cloudy Night
41°
Feels Like 37°
0
Humidity: 81%
UV Index: 0
Wind: 7 mph
9 PM
Cloudy Night
39°
Feels Like 34°
0
Humidity: 83%
UV Index: 0
Wind: 8 mph
10 PM
Cloudy Night
37°
Feels Like 30°
0
Humidity: 86%
UV Index: 0
Wind: 8 mph
11 PM
Cloudy Night
37°
Feels Like 30°
0
Humidity: 87%
UV Index: 0
Wind: 9 mph

Hourly Air Quality Forecast - AQI (US EPA)

2 AM
26 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 6.21 µg/m³
  • PM10: 12.93 µg/m³
  • O3: 0.022 ppm
  • NO2: 6 ppb
  • SO2: 0.1 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

3 AM
24 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 5.88 µg/m³
  • PM10: 12.18 µg/m³
  • O3: 0.020 ppm
  • NO2: 5.4 ppb
  • SO2: 0 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

4 AM
23 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 5.49 µg/m³
  • PM10: 11.42 µg/m³
  • O3: 0.019 ppm
  • NO2: 4.9 ppb
  • SO2: 0 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

5 AM
22 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 5.16 µg/m³
  • PM10: 10.81 µg/m³
  • O3: 0.017 ppm
  • NO2: 4.6 ppb
  • SO2: 0 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

6 AM
20 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 4.8 µg/m³
  • PM10: 10.08 µg/m³
  • O3: 0.016 ppm
  • NO2: 4.4 ppb
  • SO2: 0 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

7 AM
19 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 4.52 µg/m³
  • PM10: 9.58 µg/m³
  • O3: 0.015 ppm
  • NO2: 4.9 ppb
  • SO2: 0 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

8 AM
18 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 4.38 µg/m³
  • PM10: 9.4 µg/m³
  • O3: 0.014 ppm
  • NO2: 5.3 ppb
  • SO2: 0 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

9 AM
18 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 4.21 µg/m³
  • PM10: 9.22 µg/m³
  • O3: 0.016 ppm
  • NO2: 4.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

10 AM
17 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 4.1 µg/m³
  • PM10: 9.06 µg/m³
  • O3: 0.017 ppm
  • NO2: 3.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

11 AM
18 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 4.23 µg/m³
  • PM10: 9.18 µg/m³
  • O3: 0.019 ppm
  • NO2: 3.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

12 PM
35 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.31 µg/m³
  • PM10: 9.09 µg/m³
  • O3: 0.037 ppm
  • NO2: 2 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

1 PM
41 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.82 µg/m³
  • PM10: 9.48 µg/m³
  • O3: 0.044 ppm
  • NO2: 1.4 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

2 PM
44 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.3 µg/m³
  • PM10: 9.97 µg/m³
  • O3: 0.048 ppm
  • NO2: 1.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

3 PM
45 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.84 µg/m³
  • PM10: 10.73 µg/m³
  • O3: 0.049 ppm
  • NO2: 1.4 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

4 PM
44 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.41 µg/m³
  • PM10: 11.79 µg/m³
  • O3: 0.048 ppm
  • NO2: 2.1 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

5 PM
41 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.7 µg/m³
  • PM10: 12.67 µg/m³
  • O3: 0.045 ppm
  • NO2: 3.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

6 PM
39 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.78 µg/m³
  • PM10: 13.23 µg/m³
  • O3: 0.042 ppm
  • NO2: 5.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

7 PM
36 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.9 µg/m³
  • PM10: 13.72 µg/m³
  • O3: 0.039 ppm
  • NO2: 6.5 ppb
  • SO2: 0.2 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

8 PM
34 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.98 µg/m³
  • PM10: 14.17 µg/m³
  • O3: 0.037 ppm
  • NO2: 7.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

9 PM
32 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.93 µg/m³
  • PM10: 14.27 µg/m³
  • O3: 0.035 ppm
  • NO2: 7.5 ppb
  • SO2: 0.1 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

10 PM
30 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.95 µg/m³
  • PM10: 14.35 µg/m³
  • O3: 0.033 ppm
  • NO2: 7.5 ppb
  • SO2: 0.1 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.8 µg/m³
  • PM10: 14.04 µg/m³
  • O3: 0.031 ppm
  • NO2: 7.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

Weather Alerts and Warnings for Flagstaff

Severe Expected Likely

Flood Warning

Flood Warning issued November 2 at 10:36PM MST until November 3 at 6:00AM MST by NWS Flagstaff AZ
Nov 2, 10:36 PM → Nov 3, 6:00 AM
WHAT: Flooding caused by excessive rainfall continues.

WHERE: The Rio de Flag near Flagstaff in Coconino County.

WHEN: Until 600 AM MST Tuesday.

IMPACTS: Flooding of the Little Colorado River is occurring.

ADDITIONAL DETAILS:
- At 1033 PM MST, river gauges along the Rio de Flag show falling
water levels, however flow remained elevated from Foxglenn Park
to Picture Canyon Preserve. Flooding will remain a threat in the
Country Club neighborhood through the early morning hours as
water levels fall.
- This includes the following creeks, washes and rivers...
Rio de Flag.
- Some locations that will experience flooding include...
Downtown Flagstaff, Country Club and Coconino Estates.
- This includes the following recreation areas andcampgrounds...
Ponderosa Trails Park, Thorpe Park, Wheeler Park, Foxglenn Park
and Picture Canyon Preserve.
- Additional information is available at weather.gov/flagstaff.
+ Read More
Be aware of your surroundings and do not drive on flooded roads. Stay away or be swept away! The banks of creeks and washes are unstable and unsafe during any flooding event.
Updated: Nov 3, 1:12 AM Source: NWS Alert