Air Quality in Monrovia, United States

Windy
27.8°C · 26.3% humidity
27.8°
Feels 27.8°
35
Good
Air quality is satisfactory. Enjoy outdoor activities.
29 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
35 4pm
35
35
35 7pm
35
35
35 10pm
35
35
35 1am
35
35
35 4am
35
35
35 7am
35
35
35 10am
35
35
35 1pm
35
35
Station readings
50
25
25
21
CAMS model adj -19
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
AD 728×90

Air Quality Index Trend

48h · 1 stn

Monrovia's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

26.3%
Humidity
46.5 km/h
Wind S
1009.6 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
PM2.5
35
8.51 µg/m³
PM10
31
34.3 µg/m³
050100150200300500

Temperature & Precipitation

PM2.5 Trend

48h · 1 station
PM2.58.51 µg/m³ ✓ WHO
Good
PM1034.3 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
8.51
Median
8.94
Average
0.91
Low
11.52
High
PM2.5 µg/m³ · Model: 13.5 · Bias: +5.0
06-09
27.8° 13.9°
06-10
29.4° 15.5°
06-11
26.5° 15.5°
06-12
29.9° 16.2°
0.19 mm
06-13
33.1° 17.1°
06-14
28.2° 19.1°
06-15
25.6° 8.9°
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-06-09T02:33 UTC.