What is the air quality trend in Elk River?

Over the past 7 days, Elk River had an average AQI of 92 based on station measurements. The worst day was 2026-07-16 with AQI 241.

How is Elk River air quality measured?

Air quality in Elk River 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 Elk River, United States

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

167h

PM2.5 Station

167h · 5 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	57	32–70	15.5 µg/m³	24h	17
2026-07-20	73	28–111	22.9 µg/m³	24h	16
2026-07-19	91	55–140	30.7 µg/m³	24h	17
2026-07-18	60	25–74	16.6 µg/m³	24h	17
2026-07-17	70	49–141	21.0 µg/m³	24h	18
2026-07-16	241	45–339	186.9 µg/m³	24h	17
2026-07-15	56	32–154	16.0 µg/m³	23h	7

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