Hourly Weather | Today Thursday, February 5, 2026
Active Weather Warnings
Richland, Washington
8 PM
Cloudy Weather
45°
Feels Like 43°
0
Humidity: 93%
UV Index: 0
Wind: 4 mph
9 PM
Cloudy Weather
43°
Feels Like 43°
0
Humidity: 94%
UV Index: 0
Wind: 4 mph
10 PM
Cloudy Night
41°
Feels Like 41°
0
Humidity: 96%
UV Index: 0
Wind: 4 mph
11 PM
Cloudy Weather
41°
Feels Like 41°
0
Humidity: 95%
UV Index: 0
Wind: 4 mph

Hourly Air Quality Forecast - AQI (US EPA)

8 PM
18 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.88 µg/m³
  • PM10: 5.01 µg/m³
  • O3: 0.019 ppm
  • NO2: 4.6 ppb
  • SO2: 0 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

9 PM
17 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 4.02 µg/m³
  • PM10: 5.1 µg/m³
  • O3: 0.018 ppm
  • NO2: 4.6 ppb
  • SO2: 0 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

10 PM
18 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 4.21 µg/m³
  • PM10: 5.27 µg/m³
  • O3: 0.018 ppm
  • NO2: 4.6 ppb
  • SO2: 0 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

11 PM
18 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 4.39 µg/m³
  • PM10: 5.44 µg/m³
  • O3: 0.018 ppm
  • NO2: 4.5 ppb
  • SO2: 0 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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, 5:50 PM Source: NWS Alert