Today | Weather | Tuesday, January 13, 2026
Active Weather Warnings

Weather in Richland, Washington

02:06 PM
Now
Cloudy Weather
54° F
Feels Like 57°
Precipitation 0 %
Wind 4 mph
UV Index (0 - 11+) 1
Humidity 61 %
Today
Cloudy Weather
Day 59°
Night 34°
Precipitation 0 %
Wind 4 mph
UV Index (0 - 11+) 2

Richland Weather Forecast Updated

40 minutes ago
Last updated on

Air Quality in Richland

NOW
20 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 3.56 µg/m³
PM10 4.64 µg/m³
O3 0.021 ppm
NO2 2.6 ppb
SO2 0 ppb
CO 0.18 ppm
NH3 0.56 µg/m³
NO 1.64 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 considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.53.56 µg/m³
PM104.64 µg/m³
O341.39 µg/m³
NO24.91 µg/m³
SO20.06 µg/m³
CO201.78 µg/m³
NH30.56 µg/m³
NO1.64 µg/m³

Weather Alerts and Warnings for Richland

Moderate Expected Likely

Air Stagnation Advisory

Air Stagnation Advisory issued January 13 at 11:46AM PST until January 16 at 10:00AM PST by NWS Pendleton OR
Jan 13, 11:46 AM Jan 16, 10:00 AM
WHAT: Poor air quality will continue. This is due to an inversion
and stagnant air conditions near the surface that will continue to
trap pollutants.

WHERE: Portions of central, north central, and northeast Oregon
and central, south central, and southeast Washington.

WHEN: Until 10 AM PST Friday.

IMPACTS: Poor air quality may cause issues for people with
respiratory problems.
+ Read More
An Air Stagnation Advisory indicates that due to limited movement of an air mass across the advisory area, pollution has the potential to increase to dangerous levels. Persons with respiratory illness should follow their physicians advice for dealing with high levels of air pollution during periods of stagnant air, state air quality agencies highly recommend that no outdoor burning occur and that residential wood burning devices be limited as much as possible. According to state air quality agencies, prolonged periods of stagnant air can hold pollutants close to the ground, where people live and breathe. Check with your local burn agency for any current restrictions in your area.
Updated: Jan 13, 1:25 PM Source: NWS Alert