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Air Quality History for West Chicago, United States

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

52
Current AQI
Moderate Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

477h

PM2.5 Station

477h · 247 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-10-21 52 52–52 12.8 µg/m³ 11.6 1h 247
2026-10-20 51 22–71 13.4 µg/m³ 1.1 24h 215
2026-10-19 28 21–40 6.6 µg/m³ 3.4 24h 245
2026-10-18 23 18–35 5.5 µg/m³ — 24h 225
2026-10-17 16 13–23 3.9 µg/m³ 4.5 24h 244
2026-10-16 19 11–38 4.6 µg/m³ 1.1 24h 234
2026-10-15 24 14–41 5.8 µg/m³ 1.6 24h 245
2026-10-14 39 19–54 9.4 µg/m³ 1.8 24h 245
2026-10-13 34 25–50 8.3 µg/m³ 3.9 24h 245
2026-10-12 42 32–55 10.2 µg/m³ 3.5 24h 245
2026-10-11 32 29–37 7.6 µg/m³ 15.3 24h 245
2026-10-10 30 25–43 7.2 µg/m³ 54.2 24h 211
2026-10-09 34 24–45 8.1 µg/m³ 2.1 24h 217
2026-10-08 26 20–35 6.1 µg/m³ — 24h 236
2026-10-07 26 21–30 6.3 µg/m³ 3.2 24h 226
2026-10-06 25 20–34 5.9 µg/m³ — 24h 226
2026-10-05 28 19–35 6.7 µg/m³ 9.2 24h 236
2026-10-04 26 19–44 6.3 µg/m³ 24.6 24h 216
2026-10-03 21 15–25 5.0 µg/m³ 15.4 24h 229
2026-10-02 16 14–18 3.9 µg/m³ — 24h 235
2026-10-01 55 22–61 14.5 µg/m³ 1.7 20h 236
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