What is the air quality trend in Post Falls?

Over the past 15 days, Post Falls had an average AQI of 86 based on station measurements. The worst day was 2026-08-03 with AQI 169.

How is Post Falls air quality measured?

Air quality in Post Falls 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 Post Falls, United States

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

Historical PM2.5 and AQI trend from monitoring stations near Post Falls, United States.

145

Current AQI
Unhealthy for sensitive groups Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

325h

PM2.5 Station

325h · 4 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-08-08	93	71–111	31.6 µg/m³	9h	4
2026-08-07	147	98–155	57.2 µg/m³	20h	4
2026-08-06	136	81–156	51.0 µg/m³	24h	4
2026-08-05	108	77–127	38.0 µg/m³	24h	4
2026-08-04	162	84–179	88.9 µg/m³	24h	4
2026-08-03	169	85–186	98.7 µg/m³	18h	4
2026-08-02	64	16–166	21.4 µg/m³	24h	4
2026-08-01	50	21–63	13.0 µg/m³	24h	4
2026-07-31	65	39–75	19.1 µg/m³	24h	4
2026-07-30	59	40–73	16.0 µg/m³	23h	4
2026-07-29	52	10–85	14.8 µg/m³	24h	4
2026-07-28	65	39–83	19.2 µg/m³	24h	4
2026-07-27	59	19–86	16.7 µg/m³	24h	4
2026-07-26	32	7–89	8.7 µg/m³	24h	4
2026-07-25	42	20–56	10.3 µg/m³	15h	4

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