Air Quality in Monrovia, United States

Clear
14.6°C · 34.8% humidity
14.6°
Feels 14.6°
13
Good
Air quality is satisfactory. Enjoy outdoor activities.
30 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
5 4am
5
5
13 7am
11
9
8 10am
7
7
6 1pm
6
6
5 4pm
5
0
0 7pm
0
0
5 10pm
5
5
5 1am
5
5
Station readings
4
CAMS model adj -49
54
54
54
54
54
54
54
54
54
54
54
54
54
54
34
34
34
34
54
54
54
54
54
54
AD 728×90

Air Quality Index Trend

34h · 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.

34.8%
Humidity
30.1 km/h
Wind NNE
1012.2 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
13
3.16 µg/m³
PM10▲
25
27.4 µg/m³
050100150200300500

What is the weather forecast for Monrovia?

Temperature & Precipitation

PM2.5 Trend

34h · 1 station
PM2.53.16 µg/m³ ✓ WHO
Good
PM1027.4 µg/m³
Good
UV INDEX1.4
Low
AD 300×250
Station readings (30 stations within 25 km)
3.16
Median
3.48
Average
0.15
Low
6.0
High
PM2.5 µg/m³ · Model: 10.85 · Bias: +7.7

What is the 7-day forecast for Monrovia?

05-29
30.1° 14.6°
05-30
19.6° 8.8°
05-31
27.6° 16.6°
06-01
29.9° 11.8°
06-02
28.3° 10.6°
06-03
27.2° 7.2°
06-04
24.2° 12.2°
Both models agree Avg diff: 3.4°C

Where are air quality stations near Monrovia?

4
united-states-of-america-san-marino-sierra-madre-boulevard
9.5 km 20.4°C 54.0% RH PM2.5: 1.0 µg/m³ PM10: 1.0 µg/m³
3
Glendora-Laurel, Los Angeles
13.7 km PM2.5: 0.7 µg/m³
26
Glendora-Laurel, Los Angeles
13.7 km PM2.5: 6.2 µg/m³
17
Glendora-Laurel, Los Angeles
13.7 km PM2.5: 4.1 µg/m³
16
Glendora-Laurel, Los Angeles
13.7 km PM2.5: 3.8 µg/m³
5
Glendora-Laurel, Los Angeles
13.7 km PM2.5: 1.2 µg/m³
1
RBAC Rose Bowl Aquatics Center
15.2 km PM2.5: 0.2 µg/m³ PM10: 0.2 µg/m³
13
Loyola Village ES (5014)
15.5 km PM2.5: 3.2 µg/m³
15
Sierra Vista ES (6767)
15.8 km PM2.5: 3.6 µg/m³
12
San Pascual ES (6493)
16.3 km PM2.5: 2.8 µg/m³

What cities are near Monrovia?

13 Duarte 12 Arcadia 12 Temple City 14 Baldwin Park 18 Azusa 15 Vincent 13 El Monte 13 Rosemead 14 West Covina 14 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 2026-05-29T14:35 UTC.