Hermiston, Oregon, USA Air Quality

Monitoring Station · Hermiston, United States
63
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
181 1am
63
93
93 4am
105
105
122 7am
122
122
122 10am
122
105
93 1pm
93
73
— 4pm
—
—
— 7pm
—
—
— 10pm
—
—
Station readings
181
63
CAMS model adj +39
34
34
54
54
66
66
83
83
83
83
83
66
54
54
34

Air Quality Forecast (24h)

PM2.517.8 µg/m³ ×1.2 WHO
Moderate
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Nearby Monitoring Stations

47
Hermiston, Oregon, USA
0.0 km PM2.5: 11.3 µg/m³

Nearby Cities

54 Hermiston 54 Pendleton 79 Kennewick 82 Tri-Cities 76 Pasco 79 Richland 103 Walla Walla 84 Sunnyside 81 Yakima

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-08-08T04:49 UTC.