Hourly Weather | Today Tuesday, January 13, 2026
Active Weather Warnings
Pasco, Washington
4 PM
Cloudy Weather
55°
Feels Like 55°
0
Humidity: 49%
Wind: 5 mph
UV Index: 0
5 PM
Cloudy Night
54°
Feels Like 52°
0
Humidity: 54%
Wind: 5 mph
UV Index: 0
6 PM
Cloudy Night
50°
Feels Like 48°
0
Humidity: 60%
Wind: 6 mph
UV Index: 0
7 PM
Cloudy Night
46°
Feels Like 45°
0
Humidity: 71%
Wind: 6 mph
UV Index: 0
8 PM
Cloudy Night
43°
Feels Like 39°
0
Humidity: 80%
Wind: 6 mph
UV Index: 0
9 PM
Cloudy Night
37°
Feels Like 36°
0
Humidity: 89%
Wind: 6 mph
UV Index: 0
10 PM
Cloudy Night
36°
Feels Like 34°
0
Humidity: 95%
Wind: 5 mph
UV Index: 0
11 PM
Cloudy Night
36°
Feels Like 34°
0
Humidity: 96%
Wind: 5 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 3.88 µg/m³
  • PM10: 4.91 µg/m³
  • O3: 0.019 ppm
  • NO2: 4 ppb
  • SO2: 0 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.98 µg/m³
  • PM10: 5.02 µg/m³
  • O3: 0.017 ppm
  • NO2: 5 ppb
  • SO2: 0 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.1 µg/m³
  • PM10: 5.17 µg/m³
  • O3: 0.017 ppm
  • NO2: 5.6 ppb
  • SO2: 0 ppb
  • CO: 0.20 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.26 µg/m³
  • PM10: 5.34 µg/m³
  • O3: 0.017 ppm
  • NO2: 5.9 ppb
  • SO2: 0 ppb
  • CO: 0.21 ppm

Health Recommendations:

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

8 PM
19 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 4.5 µg/m³
  • PM10: 5.58 µg/m³
  • O3: 0.018 ppm
  • NO2: 5.8 ppb
  • SO2: 0 ppb
  • CO: 0.21 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.7 µg/m³
  • PM10: 5.79 µg/m³
  • O3: 0.019 ppm
  • NO2: 5.6 ppb
  • SO2: 0 ppb
  • CO: 0.21 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.88 µg/m³
  • PM10: 5.99 µg/m³
  • O3: 0.019 ppm
  • NO2: 5.4 ppb
  • SO2: 0 ppb
  • CO: 0.20 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.96 µg/m³
  • PM10: 6.08 µg/m³
  • O3: 0.020 ppm
  • NO2: 5.2 ppb
  • SO2: 0 ppb
  • CO: 0.20 ppm

Health Recommendations:

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

Weather Alerts and Warnings for Pasco

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, 2:44 PM Source: NWS Alert