What is the air quality trend in Kalispell?

Over the past 7 days, Kalispell had an average AQI of 100 based on station measurements. The worst day was 2026-08-07 with AQI 153.

How is Kalispell air quality measured?

Air quality in Kalispell 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 Kalispell, United States

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

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

156

Current AQI
Unhealthy Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

165h

PM2.5 Station

165h · 2 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-08-07	153	78–199	73.9 µg/m³	22h	1
2026-08-06	100	57–157	35.4 µg/m³	24h	2
2026-08-05	74	52–102	23.0 µg/m³	24h	2
2026-08-04	84	61–118	27.4 µg/m³	24h	2
2026-08-03	123	48–194	57.2 µg/m³	23h	2
2026-08-02	97	28–241	45.1 µg/m³	24h	2
2026-08-01	75	56–99	23.7 µg/m³	24h	2

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