Hourly Weather | Today Tuesday, June 9, 2026
Active Weather Warnings
Flagstaff, Arizona
7 PM
Sunny Weather
73°
Feels Like 70°
0
Humidity: 12%
UV Index: 0
Wind: 15 mph
8 PM
Night
70°
Feels Like 66°
0
Humidity: 13%
UV Index: 0
Wind: 12 mph
9 PM
Night
66°
Feels Like 64°
0
Humidity: 15%
UV Index: 0
Wind: 9 mph
10 PM
Night
63°
Feels Like 61°
0
Humidity: 18%
UV Index: 0
Wind: 7 mph
11 PM
Night
61°
Feels Like 57°
0
Humidity: 21%
UV Index: 0
Wind: 7 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 2.43 µg/m³
  • PM10: 10.12 µg/m³
  • O3: 0.056 ppm
  • NO2: 1 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.63 µg/m³
  • PM10: 11.01 µg/m³
  • O3: 0.052 ppm
  • NO2: 1.8 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.82 µg/m³
  • PM10: 12.06 µg/m³
  • O3: 0.048 ppm
  • NO2: 2.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3 µg/m³
  • PM10: 12.85 µg/m³
  • O3: 0.044 ppm
  • NO2: 2.7 ppb
  • SO2: 0.1 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.21 µg/m³
  • PM10: 13.6 µg/m³
  • O3: 0.040 ppm
  • NO2: 3 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

Weather Alerts and Warnings for Flagstaff

Severe Future Possible

Fire Weather Watch

Fire Weather Watch issued June 6 at 9:08PM MST until June 9 at 8:00PM MST by NWS Flagstaff AZ
Jun 8, 11:00 AM Jun 9, 9:00 PM
WHAT: Southwest winds 15 to 25 mph with gusts 40 to 50 mph.
Relative humidity between 8 to 16 percent on Sunday, falling to 5
to 10 percent Monday and Tuesday.

WHERE: Kaibab Plateau, Marble and Glen Canyons, Grand Canyon,
Coconino Plateau, Yavapai County Mountains, Navajo Nation in
Arizona, Little Colorado River Valley, and the Mogollon Rim. This
includes portions of the Apache-Sitgreaves, Coconino, Kaibab, and
Prescott national forests.

WHEN: For the Red Flag Warning, from 10 AM MST /11 AM MDT/ to 8 PM
MST /9 PM MDT/ Sunday. For the Fire Weather Watch, from Monday
morning through Tuesday evening.

IMPACTS: Rapid spread and growth of any new or existing fires.
Fires will have the potential to exhibit extreme fire behavior.
Elevated potential for new fire starts.
+ Read More
Do your part: No open flames or sparks, keep vehicles off of dry grass, properly dispose of cigarette butts, and avoid power equipment that creates sparks. One less spark, one less wildfire. Obey all fire restrictions. To view a map of current fire restrictions, go to wildlandfire.az.gov/fire-restrictions. A Red Flag Warning is issued when we identify weather conditions that promote rapid spread of fire which may become life-threatening. This does not mean there is a fire. These conditions are either occurring now or will begin soon. It is important to have multiple ways to receive information from authorities. Please advise the appropriate officials or fire crews in the field of this Red Flag Warning. A Fire Weather Watch means that critical fire weather conditions are possible. These conditions could promote the rapid spread and growth of wildfires, which could become life-threatening. For forecast updates, go to weather.gov/flagstaff. If you have not packed your go kit yet, now is the time to do so. This includes items like important documents and essentials you cannot live without. Fill your vehicle's fuel tank. Visit ready.gov/kit for more information. Please advise the appropriate officials or fire crews in the field of this Fire Weather Watch.
Updated: Jun 7, 12:40 PM Source: NWS Alert
Severe Expected Likely

Red Flag Warning

Red Flag Warning issued June 8 at 2:16PM MST until June 9 at 8:00PM MST by NWS Flagstaff AZ
Jun 8, 3:16 PM Jun 9, 9:00 PM
WHAT: Southwest winds 15 to 25 mph with gusts 35 to 45 mph and
relative humidity 8 to 15 percent. Winds will decrease to 5 to 15
mph for a period Monday night before increasing again Tuesday
morning.

WHERE: Kaibab Plateau, Marble and Glen Canyons, Grand Canyon
Country, Coconino Plateau, Northeast Plateaus and Mesas Hwy 264
Northward, Chinle Valley, Chuska Mountains and Defiance Plateau,
Little Colorado River Valley in Coconino County, Little Colorado
River Valley in Navajo County, Little Colorado River Valley in
Apache County, Western Mogollon Rim, Eastern Mogollon Rim, White
Mountains, Black Mesa Area, and Northeast Plateaus and Mesas South
of Hwy 264. This includes portions of the Apache-Sitgreaves,
Coconino, and Kaibab national forests.

WHEN: Until 8 PM MST /9 PM MDT/ Tuesday.

IMPACTS: Rapid spread and growth of any new or existing fires.
Fires will have the potential to exhibit extreme fire behavior.
Elevated potential for new fire starts.
+ Read More
Do your part: No open flames or sparks, keep vehicles off of dry grass, properly dispose of cigarette butts, and avoid power equipment that creates sparks. One less spark, one less wildfire. Obey all fire restrictions. To view a map of current fire restrictions, go to wildlandfire.az.gov/fire-restrictions. A Red Flag Warning is issued when we identify weather conditions that promote rapid spread of fire which may become life-threatening. This does not mean there is a fire. These conditions are either occurring now or will begin soon. It is important to have multiple ways to receive information from authorities. Please advise the appropriate officials or fire crews in the field of this Red Flag Warning.
Updated: Jun 9, 6:39 PM Source: NWS Alert
Moderate Expected Likely

Wind Advisory

Wind Advisory issued June 9 at 11:07AM MST until June 9 at 8:00PM MST by NWS Flagstaff AZ
Jun 9, 12:07 PM Jun 9, 9:00 PM
WHAT: Southwest winds 20 to 30 mph with gusts up to 45 mph.

WHERE: Black Mesa, Chuska Mountains, and Defiance Plateau, Little
Colorado River Valley, Painted Desert, Chinle Valley, and Western
Mogollon Rim.

WHEN: Until 8 PM MST /9 PM MDT/ this evening.

IMPACTS: Gusty winds will blow around unsecured objects. Tree
limbs could snap resulting in a few power outages. Travel will be
difficult, especially for high profile vehicles.
+ Read More
Winds this strong can make driving difficult, especially for high profile vehicles, such as RVs, campers, and tractor trailers. Use extra caution. Secure loose outdoor objects that could be blown around or damaged by the wind.
Updated: Jun 9, 6:39 PM Source: NWS Alert