Air Quality in Hermiston, United States
Windy
25.7°C · 17.7% humidity
25.7°
Feels 25.7°
54
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Model forecast
Nearby Monitoring Stations
Hermiston's air quality — share it
AQI Forecast
54
1pm
54
34
54
4pm
48
44
41
7pm
59
58
69
10pm
68
84
84
1am
84
84
83
4am
66
54
54
7am
34
34
27
10am
27
27
Air Quality Index Trend
45h · 6 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.
17.7%
Humidity
102.0 km/h
Wind SW
1009.9 hPa
Pressure
14.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
13.7 µg/m³
PM10
34.3 µg/m³
050100150200300500
What is the weather forecast for Hermiston?
Temperature & Precipitation
PM2.5 Trend
45h · 6 stationsPM2.513.7 µg/m³
✓ WHO
Moderate
PM1034.3 µg/m³
Good
UV INDEX14.9
Extreme
What is the 7-day forecast for Hermiston?
08-03
42.0° 16.5°
08-04
33.7° 19.3°
08-05
40.5° 19.8°
08-06
32.6° 20.8°
08-07
38.5° 18.8°
08-08
35.4° 10.2°
08-09
37.1° 15.5°
Both models agree
Avg diff: 3.5°C
Where are air quality stations near Hermiston?
What cities are near Hermiston?
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-08-07T23:06 UTC.