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Air Quality History for Lake Forest, United States

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

22
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

454h

PM2.5 Station

454h · 27 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-07-21 40 34–57 9.6 µg/m³ 21h 26
2026-07-20 50 43–62 12.3 µg/m³ 24h 25
2026-07-19 49 43–54 11.9 µg/m³ 24h 27
2026-07-18 41 34–53 9.9 µg/m³ 24h 27
2026-07-17 46 37–58 11.1 µg/m³ 24h 29
2026-07-16 41 30–50 9.9 µg/m³ 24h 26
2026-07-15 40 33–50 9.6 µg/m³ 24h 28
2026-07-14 42 35–63 10.2 µg/m³ 24h 27
2026-07-13 47 40–56 11.6 µg/m³ 24h 27
2026-07-12 42 26–50 10.2 µg/m³ 24h 26
2026-07-11 49 19–59 12.1 µg/m³ 24h 23
2026-07-10 57 42–65 15.1 µg/m³ 24h 27
2026-07-09 44 17–58 10.7 µg/m³ 24h 28
2026-07-08 33 26–46 7.9 µg/m³ 24h 29
2026-07-07 34 25–81 8.4 µg/m³ 24h 29
2026-07-06 35 29–40 8.3 µg/m³ 12h 30
2026-07-05 80 37–160 26.2 µg/m³ 24h 28
2026-07-04 43 35–54 10.4 µg/m³ 24h 30
2026-07-03 45 36–54 10.8 µg/m³ 24h 30
2026-07-02 48 31–56 11.8 µg/m³ 12h 28
2026-07-01 39 39–39 9.3 µg/m³ 1h 29
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