Tempe Good

Tempe, Arizona

Updated: Oct 14, 2026, 1:00 PM

Good

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

Current Weather

24.6°C

Temperature

33%

Humidity

4.4

mph wind

Clear sky

Conditions

Pollutant Breakdown

PM2.5

µg/m³ · Fine particles

PM10

µg/m³ · Coarse particles

36.8

Ozone

ppb · Ground-level ozone

—

NO₂

ppb · Nitrogen dioxide

—

SO₂

ppb · Sulfur dioxide

1.2

ppm · Carbon monoxide

Dominant pollutant: O3

PM2.5 Forecast (next 7 days)

Mon

10/12

avg

Tue

10/13

avg

Wed

10/14

avg

Thu

10/15

avg

Fri

10/16

avg

Sat

10/17

avg

Sun

10/18

avg

Health Guidance

✅

General population: No restrictions. Enjoy outdoor activities.

✅

Sensitive groups: Air quality is good. Normal activities are fine.

💨

Keep windows closed if AQI is Unhealthy or above. Use HEPA air purifiers indoors.

Data from: Air Monitoring - Maricopa County Air Quality Department, Air Now - US EPA, World Air Quality Index Project

Is the air safe in Tempe today?

The current Air Quality Index (AQI) in Tempe is 37, which is classified as "Good". Air quality is satisfactory, and air pollution poses little or no risk.

The AQI scale runs from 0 to 500. Values of 0–50 are Good, 51–100 are Moderate, 101–150 are Unhealthy for Sensitive Groups, 151–200 are Unhealthy, 201–300 are Very Unhealthy, and 301–500 are Hazardous.

Air quality in Tempe, Arizona is monitored by local environmental agencies and reported through the World Air Quality Index project. Data is updated hourly and includes PM2.5, PM10, ozone, nitrogen dioxide, sulfur dioxide, and carbon monoxide.

AQI Scale Reference

0–50

Good

51–100

Moderate

101–150

Unhealthy for Sensitive Groups

151–200

Unhealthy

201–300

Very Unhealthy

301+

Hazardous