Air Quality in Tri-Cities, United States

Windy
27.8°C · 16.5% humidity
27.8°
Feels 27.8°
82
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
4 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
89 1pm
81
75
82 4pm
82
82
82 7pm
62
82
82 10pm
82
82
82 1am
82
82
82 4am
82
82
82 7am
62
62
62 10am
62
55
Station readings
89
81
75
63
CAMS model adj +28
54
54
54
54
54
54
54
34
54
54
54
54
54
54
54
54
54
54
54
34
34
34
34
27
AD 728×90

Air Quality Index Trend

44h · 4 stn

Tri-Cities's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration. Current PM2.5 concentration in Tri-Cities is 1.8× the WHO 24-hour guideline of 15 µg/m³.

16.5%
Humidity
59.1 km/h
Wind SW
1009.0 hPa
Pressure
14.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
82
26.79 µg/m³
PM10
38
41.15 µg/m³
050100150200300500

What is the weather forecast for Tri-Cities?

Temperature & Precipitation

PM2.5 Trend

44h · 4 stations
PM2.526.79 µg/m³ ×1.8 WHO
Moderate
PM1041.15 µg/m³
Good
UV INDEX14.9
Extreme
AD 300×250
Station readings (4 stations within 25 km)
26.79
Median
23.6
Average
19.25
Low
27.8
High
PM2.5 µg/m³ · Model: 16.35 · Bias: -10.4

What is the 7-day forecast for Tri-Cities?

08-03
42.9° 19.1°
08-04
34.8° 20.4°
08-05
41.5° 21.6°
08-06
33.5° 21.7°
08-07
39.7° 20.4°
08-08
36.6° 12.4°
08-09
37.5° 16.1°
Both models agree Avg diff: 3.4°C

Where are air quality stations near Tri-Cities?

67
Metaline, Kennewick, Washington, USA
3.0 km PM2.5: 19.7 µg/m³
84
Metaline, Kennewick, Washington, USA
3.0 km PM2.5: 27.8 µg/m³
54
Kennewick-S Steptoe St
5.8 km PM2.5: 13.6 µg/m³
110
Pasco
7.9 km PM2.5: 39.1 µg/m³
53
Burbank-Maple St
15.3 km PM2.5: 13.2 µg/m³
25
Finley-S Finley Rd
15.9 km PM2.5: 6.1 µg/m³

What cities are near Tri-Cities?

79 Kennewick 76 Pasco 79 Richland 54 Hermiston 84 Sunnyside 103 Walla Walla 54 Pendleton 106 Moses Lake 81 Yakima 70 Ellensburg
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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 2026-08-07T23:57 UTC.