What is the air quality trend in Spokane Valley?

Over the past 8 days, Spokane Valley had an average AQI of 114 based on station measurements. The worst day was 2026-08-03 with AQI 173.

How is Spokane Valley air quality measured?

Air quality in Spokane Valley is measured by ground-level monitoring stations that report PM2.5 and PM10 concentrations hourly. CERNS.IO aggregates readings from nearby stations and converts PM2.5 to the US EPA Air Quality Index (AQI) scale.

Air Quality History for Spokane Valley, United States

Name: Spokane Valley Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Spokane Valley, United States.

145

Current AQI
Unhealthy for sensitive groups Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

158h

PM2.5 Station

158h · 16 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-08-08	80	70–86	25.9 µg/m³	3h	16
2026-08-07	147	93–155	56.8 µg/m³	20h	16
2026-08-06	135	83–153	49.8 µg/m³	24h	15
2026-08-05	110	80–133	39.1 µg/m³	24h	15
2026-08-04	161	85–188	88.5 µg/m³	24h	15
2026-08-03	173	99–187	102.4 µg/m³	18h	14
2026-08-02	61	20–166	20.6 µg/m³	24h	15
2026-08-01	52	28–64	13.8 µg/m³	21h	15

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