Air Quality in Norco, United States

Clear
33.1°C · 23.3% humidity
33.1°
Feels 33.1°
60
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Model forecast

Nearby Monitoring Stations

AQI Forecast
54 4pm
54
54
60 7pm
58
57
56 10pm
56
55
55 1am
55
54
54 4am
66
66
66 7am
66
54
54 10am
54
54
54 1pm
54
54
AD 728×90

Air Quality Index Trend

45h · 10 stn

Norco's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration. Current PM2.5 concentration in Norco is 1.1× the WHO 24-hour guideline of 15 µg/m³.

23.3%
Humidity
21.2 km/h
Wind W
1009.9 hPa
Pressure
17.4
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
60
16.35 µg/m³
PM10
38
41.15 µg/m³
050100150200300500

What is the weather forecast for Norco?

Temperature & Precipitation

PM2.5 Trend

45h · 10 stations
PM2.516.35 µg/m³ ×1.1 WHO
Moderate
PM1041.15 µg/m³
Good
UV INDEX17.4
Extreme
AD 300×250

What is the 7-day forecast for Norco?

08-03
36.5° 26.0°
08-04
34.7° 26.7°
0.13 mm
08-05
36.9° 25.8°
0.06 mm
08-06
37.2° 21.6°
08-07
32.4° 25.4°
08-08
33.9° 22.8°
08-09
33.4° 20.1°
Both models agree Avg diff: 4.1°C

Where are air quality stations near Norco?

26
Rubidoux - Mission Blvd, Riverside
14.4 km PM2.5: 6.2 µg/m³
38
4001 Iowa Ave Riverside CA
19.6 km PM2.5: 9.0 µg/m³
46
Emerbee's
21.0 km PM2.5: 11.0 µg/m³
30
C&C Center
21.4 km PM2.5: 7.3 µg/m³
36
EHS Building
21.7 km PM2.5: 8.6 µg/m³
51
San Bernardino
28.2 km PM2.5: 12.3 µg/m³

What cities are near Norco?

60 Eastvale 60 Corona 60 Jurupa Valley 60 Glen Avon 60 Riverside 60 Rubidoux 60 Chino 60 Ontario 68 Rancho Cucamonga 68 Chino Hills
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-08-08T02:05 UTC.