Today | Weather | Friday, May 8, 2026
Active Weather Warnings

Weather in Tempe, Arizona

07:59 PM
Now
Night
93° F
Feels Like 91°
Precipitation 0 %
Wind 7 mph
Humidity 10 %
Today
Night
Day 99°
Night 70°
Precipitation 0 %
Wind 6 mph

Tempe Weather Forecast Updated

7 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (May 8, 2025)
Sunny Weather

Day

95°

Night

68°

Wind

4 mph

UV Index

11

Precipitation

0 %

Air Quality in Tempe

NOW
79 AQI
Moderate air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 8.19 µg/m³
PM10 30.83 µg/m³
O3 0.063 ppm
NO2 0.3 ppb
SO2 0.1 ppb
CO 0.09 ppm
NH3 1.47 µg/m³
NO 0.01 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

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.

Show raw pollutant concentrations (µg/m³)
PM2.58.19 µg/m³
PM1030.83 µg/m³
O3124.24 µg/m³
NO20.62 µg/m³
SO20.33 µg/m³
CO102.9 µg/m³
NH31.47 µg/m³
NO0.01 µg/m³

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