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This is not the current AirNow website. To navigate to the current AirNow website, please go to www.airnow.gov. This website is historical material reflecting the AirNow website as it existed on September 12, 2018. This website is no longer updated and links to external websites and some internal pages may not work.

Phoenix
 
Data and Forecasts courtesy of:
 

 - https://files.airnowtech.org/airnow/today/cur_aqi_phoenix_az.jpg
 
Legend: Tribal Boundaries Tribal Boundaries
The tribal boundaries shown here are provided by the Bureau of Indian Affairs and are intended to be used as a general spatial reference only. They are not a formal determination of tribal boundaries by the EPA.
AQI Forecast - https://files.airnowtech.org/airnow/today/forecast_aqi_20181020_phoenix_az.jpg
 
Legend: Tribal Boundaries Tribal Boundaries
The tribal boundaries shown here are provided by the Bureau of Indian Affairs and are intended to be used as a general spatial reference only. They are not a formal determination of tribal boundaries by the EPA.
AQI Animation - https://files.airnowtech.org/airnow/today/anim_aqi_phoenix_az.gif
 
Legend: Tribal Boundaries Tribal Boundaries
The tribal boundaries shown here are provided by the Bureau of Indian Affairs and are intended to be used as a general spatial reference only. They are not a formal determination of tribal boundaries by the EPA.
 
AQI: Good (0 - 50) AQI: Good (0 - 50)
Air quality is considered satisfactory, and air pollution poses little or no risk.
AQI: Moderate (51 - 100) AQI: Moderate (51 - 100)
Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.
AQI: Unhealthy for Sensitive Groups (101 - 150) AQI: Unhealthy for Sensitive Groups (101 - 150)
Although general public is not likely to be affected at this AQI range, people with lung disease, older adults and children are at a greater risk from exposure to ozone, whereas persons with heart and lung disease, older adults and children are at greater risk from the presence of particles in the air.
AQI: Unhealthy (151 - 200) AQI: Unhealthy (151 - 200)
Everyone may begin to experience health effects; members of sensitive groups may experience more serious health effects.
 AQI:Very Unhealthy (201 - 300) AQI: Very Unhealthy (201 - 300)
Health alert: everyone may experience more serious health effects.
AQI: Hazardous(301 - 500) AQI: Hazardous (301 - 500)
Health warnings of emergency conditions. The entire population is more likely to be affected.
Action DayAction Day
 
Local Air Quality Resources
Maricopa County Air Quality Department | Maricopa County Dust Forecast | Today's AQI and Forecast (AZ DEQ)
 
State Air Quality Resources
ADEQ Contact Information
ADEQ Regional Haze and Visibility
American Lung Association (ALA) of Arizona
Arizona Department of Environmental Quality Air Quality Division
Clean Air Make More - Maricopa County
Gila River Indian Community DEQ Air Quality Program
 
Data and Forecasts courtesy of:
Current Conditions
Data Not Available
Air Quality Forecast
Today Tomorrow
Air Quality Index (AQI)
36
Good
Health Message: None
Air Quality Index (AQI)
35
Good
Health Message: None
AQI - Pollutant Details
Carbon Monoxide
5
Good
Ozone
36
Good
Particles (PM10)
36
Good
Particles (PM2.5)
20
Good
Carbon Monoxide
6
Good
Ozone
35
Good
Particles (PM10)
30
Good
Particles (PM2.5)
18
Good
Forecast Discussion: [View the ADEQ Hourly Forecast for Phoenix]
Have you been enjoying the well below average weather lately? Unfortunately, after 18 days of below average high temperatures in Phoenix, a warming trend will bring that to an end later this afternoon with high temperatures forecast to be right at the average of 87 degrees. Tomorrow (Saturday), expecting even warmer conditions with high temperatures rising into the low 90's. The good news, air quality is forecast to remain in the Good AQI category through the weekend.

Water vapor satellite tells the story this morning for what is happening in the atmosphere. An area of low is developing off the coast of Southern California as a large area of high pressure moves over the Pacific Northwest. As high pressure slides eastward, it will allow the low to begin moving northeast this weekend into the first part of next week. This pattern will also result in an increase in moisture from the south which will help to bring a chance of rain to the Valley of the Sun late Saturday through the day on Sunday. Not expecting widespread coverage with only isolated storms currently in the forecast; however, storms that do form will be capable of producing heavy rain and strong gusty winds.

The other thing to note for this weekend is breezy easterly winds likely Saturday through Sunday. Currently forecasting easterly winds of 15-25mph both days with some higher gusts possible. The strongest winds are predicted to be Saturday afternoon through Sunday morning. While this would typically be a dust concern given the longevity of the wind event, with all the recent rain, not expecting much dust to be produced. With that said, use caution traveling as localized areas of blowing dust will be possible.

By next week, expecting winds to calm and skies to clear with temperatures sitting in the mid-80's which is right around average for this time of year.

Have a great weekend!

-M. Pace
http://azdeq.gov/phoenix/forecast
Last Update: Friday, October 19, 2018, 8:04 AM
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