Today | Weather | Wednesday, August 12, 2026

Active Weather Warnings

Air Quality Alert

Weather in Pasco, Washington

04:14 AM

Now

64° F

Feels Like 63°

Precipitation 0 %

Wind 6 mph

Humidity 66 %

Today

Day 91°

Night 63°

Precipitation 0 %

Wind 6 mph

UV Index (0 - 11+) 7

Pasco Weather Forecast Updated

12 minutes ago

Last updated on August 12, 2026 at 4:02 AM

Air Quality in Pasco

NOW

175 AQI

Unhealthy air quality Dominant pollutant: PM_2.5

Pollutant Concentrations:

PM_2.5 102.92 µg/m³

PM₁₀ 103.57 µg/m³

O₃ 0.022 ppm

NO₂ 2.5 ppb

SO₂ 0.2 ppb

CO 0.27 ppm

NH₃ 2.67 µg/m³

NO 0 µg/m³

PM_2.5 – 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:

Everyone may begin to experience health effects; members of sensitive groups may experience more serious health effects.

Show raw pollutant concentrations (µg/m³)

PM_2.5 – 102.92 µg/m³

PM₁₀ – 103.57 µg/m³

O₃ – 43.76 µg/m³

NO₂ – 4.68 µg/m³

SO₂ – 0.42 µg/m³

CO – 305.43 µg/m³

NH₃ – 2.67 µg/m³

NO – 0 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Pasco

Air Quality Alert

Air Quality Alert issued August 5 at 2:33PM PDT by NWS Pendleton OR

Aug 5, 2:33 PM → Aug 12, 5:00 AM

The Washington State Department of Ecology, Benton Clean Air Agency,
and the Yakima Regional Clean Air Agency have issued an Air Quality
Alert until further notice.

For the Smoke Air Quality Alert, wildfires burning in the region
combined with forecasted conditions will cause air quality to reach
unhealthy levels.

Pollutants in smoke can cause burning eyes, runny nose, aggravate
heart and lung diseases, and aggravate other serious health
problems. Limit outdoor activities and keep children indoors if it
is smoky. Please follow medical advice if you have a heart or lung
condition.

Information from the Washington Department of Ecology web site is
available at http://www.ecy.wa.gov/air.html or call 360-407-6000.
Information from the Yakima Regional Clean Air Agency web site is
available at http://www.yakimacleanair.org or call 509-834-2050.
Information from the Benton County Clean Air Agency web site is
available at http://www.bentoncleanair.org or call 509-783-1304.

Updated: Aug 12, 4:02 AM Source: NWS Alert