What is the air quality trend in Opelousas?

Over the past 21 days, Opelousas had an average AQI of 40 based on station measurements. The worst day was 2026-05-11 with AQI 61.

How is Opelousas air quality measured?

Air quality in Opelousas 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 Opelousas, United States

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

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

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

312h

PM2.5 Station

312h · 1 station

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-30	36	26–55	9.0 µg/m³	3h	1
2026-05-29	43	9–80	11.5 µg/m³	18h	1
2026-05-28	50	5–70	13.4 µg/m³	16h	1
2026-05-27	43	22–71	11.0 µg/m³	17h	2
2026-05-26	42	13–117	11.8 µg/m³	19h	2
2026-05-25	38	19–60	9.3 µg/m³	15h	2
2026-05-24	35	10–91	8.9 µg/m³	17h	1
2026-05-23	37	5–90	9.9 µg/m³	15h	2
2026-05-22	27	15–75	6.9 µg/m³	14h	2
2026-05-21	32	8–77	8.2 µg/m³	18h	2
2026-05-20	34	13–60	8.4 µg/m³	16h	2
2026-05-19	32	12–79	8.2 µg/m³	19h	2
2026-05-18	40	7–78	10.9 µg/m³	14h	2
2026-05-17	35	13–129	9.8 µg/m³	12h	2
2026-05-16	36	20–57	8.7 µg/m³	13h	2
2026-05-15	42	15–127	11.7 µg/m³	14h	1
2026-05-14	38	12–104	10.4 µg/m³	18h	1
2026-05-13	57	23–157	17.2 µg/m³	15h	1
2026-05-12	61	15–159	19.2 µg/m³	17h	1
2026-05-11	61	1–157	19.7 µg/m³	14h	2
2026-05-10	36	9–102	10.5 µg/m³	8h	1

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