Air Quality in Longview, United States

Windy
14.2°C · 52.5% humidity
14.2°
Feels 14.2°
12
Good
Air quality is satisfactory. Enjoy outdoor activities.
3 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
4 2pm
4
4
12 5pm
10
8
7 8pm
6
7
6 11pm
6
6
5 2am
5
5
5 5am
5
5
5 8am
5
5
5 11am
5
4
Station readings 26h ago
AQI 5
PM2.5 1.2 µg/m³ · 26h ago
AD 728×90

Air Quality Index Trend

48h · 5 stn

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

52.5%
Humidity
63.4 km/h
Wind W
1018.6 hPa
Pressure
2.9
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
12
2.78 µg/m³
PM10▲
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Longview?

Temperature & Precipitation

PM2.5 Trend

48h · 5 stations
PM2.52.78 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX2.9
Moderate
AD 300×250
Station readings (3 stations within 25 km)
2.78
Median
2.52
Average
1.97
Low
3.4
High
PM2.5 µg/m³ · Model: 5.8 · Bias: +3.0
Both models agree Avg diff: 5.3°C

Where are air quality stations near Longview?

13
30th Ave, Longview, Washington, USA
1.8 km PM2.5: 3.1 µg/m³
4
30th Ave, Longview, Washington, USA
1.8 km PM2.5: 1.0 µg/m³
46
30th Ave, Longview, Washington, USA
1.8 km PM2.5: 11.0 µg/m³
8
Kelso
9.4 km PM2.5: 2.0 µg/m³

What cities are near Longview?

16 Battle Ground 18 Salmon Creek 17 Hazel Dell 21 Five Corners 13 Vancouver 22 Orchards 8 Centralia 18 Bethany 18 Hillsboro 10 Forest Grove
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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 2026-06-09T00:27 UTC.