Air Quality in Walla Walla, United States
Windy
24.9°C · 23.3% humidity
24.9°
Feels 24.9°
5
Good
Air quality is satisfactory. Enjoy outdoor activities.
2 stations
Nearby Monitoring Stations
Walla Walla's air quality — share it
AQI Forecast
Calibrated
3
9am
3
4
5
12pm
3
3
3
3pm
3
3
3
6pm
3
3
3
9pm
3
3
3
12am
3
3
3
3am
3
3
3
6am
3
3
Station readings
21h ago
AQI 3
PM2.5 0.7 µg/m³ · 21h ago
Air Quality Index Trend
48h · 2 stnWalla Walla's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
23.3%
Humidity
69.2 km/h
Wind WSW
1009.5 hPa
Pressure
14.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5
1.3 µg/m³
PM10▲
13.7 µg/m³
050100150200300500
What is the weather forecast for Walla Walla?
Temperature & Precipitation
PM2.5 Trend
48h · 2 stationsPM2.51.3 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX14.9
Extreme
Station readings (2 stations within 25 km)
1.3
Median
1.3
Average
1.2
Low
1.4
High
PM2.5 µg/m³ · Model: 5.9 · Bias: +4.6
What is the 7-day forecast for Walla Walla?
06-08
26.5° 17.1°
5.56 mm
06-09
23.9° 14.7°
06-10
25.9° 15.8°
06-11
27.3° 14.8°
06-12
30.9° 14.5°
06-13
36.6° 12.7°
06-14
32.4° 18.0°
0.38 mm
Both models agree
Avg diff: 3.9°C
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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 2026-06-08T19:30 UTC.