Air Quality in Monrovia, United States

Clear
18.7°C · 30.4% humidity
18.7°
Feels 18.7°
36
Good
Air quality is satisfactory. Enjoy outdoor activities.
28 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
28 7pm
28
28
36 10pm
34
32
31 1am
30
30
29 4am
29
29
28 7am
28
28
28 10am
28
28
28 1pm
28
28
28 4pm
28
28
Station readings
21
33
33
33
CAMS model adj -26
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.

30.4%
Humidity
30.9 km/h
Wind N
1011.3 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
36
8.71 µg/m³
PM10
25
27.4 µg/m³
050100150200300500

What is the weather forecast for Monrovia?

Temperature & Precipitation

PM2.5 Trend

48h · 1 station
PM2.58.71 µg/m³ ✓ WHO
Good
PM1027.4 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (28 stations within 25 km)
8.71
Median
9.13
Average
0.26
Low
16.4
High
PM2.5 µg/m³ · Model: 10.85 · Bias: +2.1

What is the 7-day forecast for Monrovia?

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°
Both models agree Avg diff: 3.1°C

Where are air quality stations near Monrovia?

33
united-states-of-america-san-marino-sierra-madre-boulevard
9.5 km 24.1°C 50.0% RH PM2.5: 8.0 µg/m³ PM10: 9.0 µg/m³
15
Glendora-Laurel, Los Angeles
13.7 km PM2.5: 3.6 µg/m³
51
Glendora-Laurel, Los Angeles
13.7 km PM2.5: 12.1 µg/m³
14
Glendora-Laurel, Los Angeles
13.7 km PM2.5: 3.4 µg/m³
60
Glendora-Laurel, Los Angeles
13.7 km PM2.5: 16.4 µg/m³
19
Glendora-Laurel, Los Angeles
13.7 km PM2.5: 4.6 µg/m³
1
RBAC Rose Bowl Aquatics Center
15.2 km PM2.5: 0.3 µg/m³ PM10: 0.3 µg/m³
33
Loyola Village ES (5014)
15.5 km PM2.5: 7.9 µg/m³
42
Sierra Vista ES (6767)
15.8 km PM2.5: 10.2 µg/m³
33
San Pascual ES (6493)
16.3 km PM2.5: 8.0 µg/m³

What cities are near Monrovia?

36 Duarte 36 Arcadia 36 Temple City 37 Baldwin Park 30 Azusa 34 Vincent 37 El Monte 37 Rosemead 36 West Covina 38 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 2026-06-09T05:37 UTC.