Today | Weather | Thursday, February 5, 2026
Active Weather Warnings

Weather in Richland, Washington

05:37 PM
Now
Cloudy Weather
45° F
Feels Like 45°
Precipitation 0 %
Wind 4 mph
Humidity 84 %
Today
Cloudy Weather
Day 48°
Night 37°
Precipitation 1 %
Wind 4 mph
UV Index (0 - 11+) 1

Richland Weather Forecast Updated

Air Quality in Richland

NOW
22 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 3.49 µg/m³
PM10 4.7 µg/m³
O3 0.023 ppm
NO2 3.8 ppb
SO2 0 ppb
CO 0.17 ppm
NH3 1.14 µg/m³
NO 0 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)
PM2.53.49 µg/m³
PM104.7 µg/m³
O345.6 µg/m³
NO27.22 µg/m³
SO20.08 µg/m³
CO197.07 µg/m³
NH31.14 µg/m³
NO0 µg/m³

Weather Alerts and Warnings for Richland

Moderate Expected Observed

Special Weather Statement

Special Weather Statement issued February 5 at 12:28PM PST by NWS Pendleton OR
Feb 5, 12:28 PM Feb 6, 12:30 AM
Areas of dense fog reducing visibility as low as one quarter mile
will persist across many areas especially above about 2000 ft
through the duration of the afternoon and into the evening. By the
evening and overnight, many of these areas of dense fog will
expand to lower elevations, becoming more widespread, especially
for areas along the foothills of the Blue Mountains.

Motorists should be prepared for dense fog expanding overnight,
potentially creating a travel hazard well into the late morning
on Friday.
Updated: Feb 5, 4:08 PM Source: NWS Alert