What is the air quality trend in Kalispell?

Over the past 7 days, Kalispell had an average AQI of 101 based on station measurements. The worst day was 2026-08-07 with AQI 141.

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 · 4 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-08-07	141	77–192	61.1 µg/m³	24h	2
2026-08-06	94	53–156	32.1 µg/m³	24h	2
2026-08-05	76	48–114	23.7 µg/m³	24h	2
2026-08-04	94	59–156	32.2 µg/m³	24h	2
2026-08-03	129	36–194	61.5 µg/m³	24h	1
2026-08-02	97	30–232	45.3 µg/m³	24h	2
2026-08-01	77	55–113	24.4 µg/m³	21h	2

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