Air Quality in Rancho Cucamonga, United States

Drizzle
9.4°C · 81.0% humidity
9.4°
Feels 4.5°
45
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station

Nearby Monitoring Stations

AQI Forecast Calibrated
34 2am
36
38
50 5am
38
38
38 8am
38
38
38 11am
38
38
38 2pm
38
38
13 5pm
13
13
0 8pm
0
0
0 11pm
0
0
Station readings
34
36
38
50
CAMS model adj -37
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
50
50
50
37
37
37
37
37
25
AD 728×90

PM2.5 Trend (24h)

27h · 1 station
81.0%
Humidity
51.4 km/h
Wind SSW
1011.6 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

What is the weather forecast for Rancho Cucamonga?

Temperature & Precipitation

PM2.510.86 µg/m³ ✓ WHO
Good
PM1027.4 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (1 station within 25 km)
10.86
Median
10.86
Average
10.86
Low
10.86
High
PM2.5 µg/m³ · Model: 23.4 · Bias: +12.5
Both models agree Avg diff: 3.5°C

Where are air quality stations near Rancho Cucamonga?

60
Rubidoux - Mission Blvd, Riverside
20.2 km
56
Rubidoux - Mission Blvd, Riverside
20.2 km
53
Glendora-Laurel, Los Angeles
24.1 km
53
Glendora-Laurel, Los Angeles
24.1 km
45
San Bernardino
24.6 km PM2.5: 10.9 µg/m³
41
4001 Iowa Ave Riverside CA
27.5 km PM2.5: 9.8 µg/m³
44
Emerbee's
28.4 km PM2.5: 10.6 µg/m³
28
C&C Center
29.2 km PM2.5: 6.7 µg/m³

What cities are near Rancho Cucamonga?

36 Upland 35 Ontario 29 Claremont 36 Chino 40 Jurupa Valley 40 Glen Avon 40 Fontana 29 Pomona 50 La Verne 39 Eastvale

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-10T05:41 UTC.