What is the air quality in Hermiston today?

The current Air Quality Index (AQI) in Hermiston is 25 (Good). PM2.5 concentration is 6.0 µg/m³.

What is the temperature in Hermiston right now?

The current temperature in Hermiston is 22.7°C (feels like 22.7°C). Humidity is 36.0% and wind speed is 74.4 km/h.

Is it safe to go outside in Hermiston?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 17.4 (Extreme).

Air Quality in Hermiston, United States

Windy

22.7°C · 36.0% humidity

22.7°

Feels 22.7°

Good

Air quality is satisfactory. Enjoy outdoor activities.

1 station

Nearby Monitoring Stations

AQI Forecast

24 10am

25 1pm

24 4pm

24 7pm

24 10pm

24 1am

24 4am

24 7am

Air Quality Index Trend

48h · 5 stn

View full history →

Hermiston's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

36.0%

Humidity

74.4 km/h

Wind SW

1009.3 hPa

Pressure

17.4

UV Extreme

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

6.0 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Hermiston?

Temperature & Precipitation

PM2.5 Trend

48h · 5 stations

PM2.56.0 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX17.4

Extreme

Station readings (1 station within 25 km)

6.0

Median

6.0

Average

6.0

Low

6.0

High

PM2.5 µg/m³ · Model: 5.9 · Bias: -0.1

What is the 7-day forecast for Hermiston?

06-08

27.9° 17.2°

0.19 mm

06-09

23.5° 14.4°

06-10

25.7° 15.5°

06-11

26.7° 16.6°

06-12

30.9° 13.7°

06-13

35.4° 10.8°

06-14

31.4° 16.3°

Both models agree Avg diff: 3.3°C

Where are air quality stations near Hermiston?

Hermiston Municipal Airport, Oregon, USA

2.4 km PM2.5: 1.2 µg/m³

What cities are near Hermiston?

13 Kennewick 9 Pendleton 15 Tri-Cities 17 Pasco 12 Richland 8 Sunnyside 5 Walla Walla 9 Yakima 12 Moses Lake 15 The Dalles

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ModerateAQI > 50 Unhealthy for Sensitive GroupsAQI > 100 UnhealthyAQI > 150 Very UnhealthyAQI > 200

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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 2026-06-08T20:42 UTC.