Hourly Weather | Today Friday, May 8, 2026
Active Weather Warnings
Tempe, Arizona
10 PM
Night
88°
Feels Like 84°
0
Humidity: 13%
UV Index: 0
Wind: 6 mph
11 PM
Night
84°
Feels Like 82°
0
Humidity: 15%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 8.15 µg/m³
  • PM10: 34.36 µg/m³
  • O3: 0.059 ppm
  • NO2: 0.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

11 PM
66 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 8.4 µg/m³
  • PM10: 36.39 µg/m³
  • O3: 0.059 ppm
  • NO2: 0.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

Weather Alerts and Warnings for Tempe

Air Quality Alert

Air Quality Alert issued May 8 at 9:20AM MST by NWS Phoenix AZ
May 8, 10:20 AM May 10, 10:00 PM
AQAPSR

The Arizona Department of Environmental Quality (ADEQ) has issued an
Ozone High Pollution Advisory for the Phoenix Metro Area today through
Sunday.

This means that forecast weather conditions combined with existing
ozone levels are expected to result in local maximum 8-hour ozone
concentrations that pose a health risk. Adverse health effects
increase as air quality deteriorates.

Ozone is an air contaminant which can cause breathing difficulties
for children, older adults, as well as persons with respiratory
problems. A decrease in physical activity is recommended.

You are urged to car pool, telecommute or use mass transit.
The use of gasoline-powered equipment should be reduced or done late
in the day.

For details on this High Pollution Advisory, visit the ADEQ internet
site at www.azdeq.gov/forecast/phoenix or call 602-771-2300.
Updated: May 8, 8:51 PM Source: NWS Alert