Air Quality in Monrovia, United States

Clear
22.7°C · 44.8% humidity
22.7°
Feels 22.7°
28
Good
Air quality is satisfactory. Enjoy outdoor activities.
33 stations

Nearby Monitoring Stations

AQI Forecast
8 3pm
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6
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Station readings
8
10
6

Air Quality Index Trend

47h · 2 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.

44.8%
Humidity
35.5 km/h
Wind SSW
1013.6 hPa
Pressure
0.0
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
PM2.5▲
28
6.83 µg/m³
PM10
25
27.4 µg/m³
050100150200300500

Temperature & Precipitation

PM2.5 Trend

47h · 2 stations
PM2.56.83 µg/m³ ✓ WHO
Good
PM1027.4 µg/m³
Good
UV INDEX0.0
Low
6.83
Median
7.14
Average
0.33
Low
14.0
High
PM2.5 µg/m³ · Model: 13.5 · Bias: +6.7
10-21
22.7° 13.4°
10-22
27.8° 16.0°
10-23
23.4° 14.8°
10-24
23.1° 12.7°
0.25 mm
10-25
24.7° 6.9°
10-26
23.6° 13.5°
1.63 mm
10-27
22.6° 11.3°
0.62 mm
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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 2026-10-21T01:11 UTC.