What is the air quality in Rancho Cucamonga today?

The current Air Quality Index (AQI) in Rancho Cucamonga is 43 (Good). PM2.5 concentration is 10.29 µg/m³.

What is the temperature in Rancho Cucamonga right now?

The current temperature in Rancho Cucamonga is 23.7°C (feels like 23.7°C). Humidity is 37.1% and wind speed is 43.5 km/h.

Is it safe to go outside in Rancho Cucamonga?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Rancho Cucamonga, United States

Windy

23.7°C · 37.1% humidity

23.7°

Feels 23.7°

Good

Air quality is satisfactory. Enjoy outdoor activities.

5 stations

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

45h · 8 stn

View full history →

Rancho Cucamonga's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

37.1%

Humidity

43.5 km/h

Wind SSW

1013.0 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

10.29 µg/m³

PM10

41.2 µg/m³

050100150200300500

What is the weather forecast for Rancho Cucamonga?

Temperature & Precipitation

PM2.5 Trend

45h · 8 stations

PM2.510.29 µg/m³ ✓ WHO

Good

PM1041.2 µg/m³

Good

UV INDEX0.0

Low

Station readings (5 stations within 25 km)

10.29

Median

10.34

Average

7.12

Low

14.0

High

PM2.5 µg/m³ · Model: 13.5 · Bias: +3.2

What is the 7-day forecast for Rancho Cucamonga?

10-21

23.7° 13.0°

10-22

26.6° 15.5°

10-23

22.6° 14.3°

10-24

23.7° 13.0°

0.13 mm

10-25

21.7° 6.3°

10-26

23.2° 12.8°

4.25 mm

10-27

22.3° 12.9°

0.13 mm

Both models agree Avg diff: 4.4°C

Where are air quality stations near Rancho Cucamonga?

Rubidoux - Mission Blvd, Riverside

20.2 km PM2.5: 11.0 µg/m³

Rubidoux - Mission Blvd, Riverside

20.2 km PM2.5: 8.6 µg/m³

Glendora-Laurel, Los Angeles

24.1 km PM2.5: 14.0 µg/m³

Glendora-Laurel, Los Angeles

24.1 km PM2.5: 11.0 µg/m³

San Bernardino

24.6 km PM2.5: 7.2 µg/m³

4001 Iowa Ave Riverside CA

27.5 km PM2.5: 5.3 µg/m³

Emerbee's

28.4 km PM2.5: 6.4 µg/m³

C&C Center

29.2 km PM2.5: 4.8 µg/m³

What cities are near Rancho Cucamonga?

48 Upland 47 Ontario 52 Claremont 52 Chino 34 Jurupa Valley 35 Glen Avon 33 Fontana 52 Pomona 52 La Verne 32 Eastvale

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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 2026-10-21T01:07 UTC.