Air Quality in Hermiston, United States
Windy
24.2°C · 29.7% humidity
24.2°
Feels 24.2°
21
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model
Nearby Monitoring Stations
AQI Forecast
25
11am
25
25
21
2pm
25
25
24
5pm
24
24
24
8pm
25
25
27
11pm
27
27
27
2am
27
27
27
5am
25
25
25
8am
25
25
Air Quality Index Trend
48h · 5 stnHermiston's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
29.7%
Humidity
56.1 km/h
Wind N
1009.9 hPa
Pressure
14.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
5.12 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Hermiston?
Temperature & Precipitation
PM2.5 Trend
48h · 5 stationsPM2.55.12 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX14.9
Extreme
What is the 7-day forecast for Hermiston?
05-29
32.2° 10.7°
0.38 mm
05-30
24.2° 13.7°
05-31
35.9° 17.0°
06-01
27.5° 8.2°
06-02
33.1° 11.9°
06-03
27.1° 6.2°
06-04
26.4° 9.6°
4.5 mm
Both models agree
Avg diff: 5.5°C
Where are air quality stations near Hermiston?
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-05-29T21:10 UTC.