Air Quality in Monrovia, United States

Windy
31.1°C · 24.6% humidity
31.1°
Feels 31.1°
32
Good
Air quality is satisfactory. Enjoy outdoor activities.
2 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
32 3pm
31
26
32 6pm
28
28
28 9pm
28
16
16 12am
16
16
16 3am
16
28
28 6am
28
16
28 9am
28
28
28 12pm
28
28
Station readings
32
31
26
CAMS model adj -38
66
66
66
66
66
66
66
66
54
54
54
54
54
54
66
66
66
54
66
66
66
66
66
66
AD 728×90

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.

24.6%
Humidity
46.3 km/h
Wind S
1011.3 hPa
Pressure
17.4
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
32
7.76 µg/m³
PM10▲
72
98.05 µg/m³
050100150200300500

What is the weather forecast for Monrovia?

Temperature & Precipitation

PM2.5 Trend

47h · 2 stations
PM2.57.76 µg/m³ ✓ WHO
Good
PM1098.05 µg/m³
Moderate
UV INDEX17.4
Extreme
AD 300×250
Station readings (2 stations within 25 km)
7.76
Median
6.03
Average
2.06
Low
10.0
High
PM2.5 µg/m³ · Model: 36.45 · Bias: +28.7

What is the 7-day forecast for Monrovia?

08-03
33.1° 17.6°
08-04
28.5° 19.2°
0.13 mm
08-05
34.3° 19.9°
08-06
33.3° 16.1°
08-07
30.6° 17.8°
08-08
28.2° 15.3°
08-09
33.1° 15.2°
Both models agree Avg diff: 5.2°C

Where are air quality stations near Monrovia?

33
united-states-of-america-san-marino-sierra-madre-boulevard
9.5 km 37.4°C 27.0% RH PM2.5: 8.0 µg/m³ PM10: 8.0 µg/m³
94
Glendora-Laurel, Los Angeles
13.7 km PM2.5: 32.5 µg/m³
98
Glendora-Laurel, Los Angeles
13.7 km PM2.5: 34.4 µg/m³
29
Glendora-Laurel, Los Angeles
13.7 km PM2.5: 7.0 µg/m³
8
RBAC Rose Bowl Aquatics Center
15.2 km PM2.5: 2.0 µg/m³ PM10: 2.3 µg/m³
52
Sierra Vista ES (6767)
15.8 km PM2.5: 12.8 µg/m³
45
San Pascual ES (6493)
16.3 km PM2.5: 10.8 µg/m³
49
Sierra Park ES (6753)
17.3 km PM2.5: 11.7 µg/m³
46
Annandale ES (2151)
17.4 km PM2.5: 11.0 µg/m³
53
El Sereno ES (3562)
17.6 km PM2.5: 13.0 µg/m³

What cities are near Monrovia?

32 Duarte 35 Arcadia 36 Temple City 31 Baldwin Park 30 Azusa 30 Vincent 32 El Monte 33 Rosemead 30 West Covina 30 West Puente Valley
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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 2026-08-08T01:32 UTC.