What is the air quality trend in Roanoke?

Over the past 8 days, Roanoke had an average AQI of 76 based on station measurements. The worst day was 2026-07-17 with AQI 149.

How is Roanoke air quality measured?

Air quality in Roanoke 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 Roanoke, United States

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

142h

PM2.5 Station

142h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-22	26	26–26	6.2 µg/m³	1h	1
2026-07-21	45	17–90	12.4 µg/m³	19h	2
2026-07-20	51	2–157	15.2 µg/m³	21h	2
2026-07-19	71	21–155	22.9 µg/m³	21h	3
2026-07-18	103	32–177	43.0 µg/m³	21h	2
2026-07-17	149	10–256	86.8 µg/m³	19h	3
2026-07-16	113	19–299	52.6 µg/m³	24h	3
2026-07-15	52	34–95	13.7 µg/m³	16h	3

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