Air Quality in Rialto, United States

Windy
32.5°C · 20.1% humidity
32.5°
Feels 32.5°
60
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Model forecast

Nearby Monitoring Stations

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

Air Quality Index Trend

46h · 11 stn

Rialto'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 Rialto is 1.1× the WHO 24-hour guideline of 15 µg/m³.

20.1%
Humidity
51.9 km/h
Wind SSW
1011.1 hPa
Pressure
17.4
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
60
16.35 µg/m³
PM10
31
34.3 µg/m³
050100150200300500

What is the weather forecast for Rialto?

Temperature & Precipitation

PM2.5 Trend

46h · 11 stations
PM2.516.35 µg/m³ ×1.1 WHO
Moderate
PM1034.3 µg/m³
Good
UV INDEX17.4
Extreme
AD 300×250

What is the 7-day forecast for Rialto?

08-03
34.1° 21.2°
08-04
29.5° 19.9°
1.44 mm
08-05
34.0° 19.8°
0.25 mm
08-06
33.9° 17.4°
08-07
32.2° 18.9°
08-08
29.9° 16.1°
08-09
34.6° 15.2°
Both models agree Avg diff: 4.7°C

Where are air quality stations near Rialto?

53
San Bernardino
4.1 km PM2.5: 12.9 µg/m³
84
Rubidoux - Mission Blvd, Riverside
12.6 km PM2.5: 27.8 µg/m³
74
Rubidoux - Mission Blvd, Riverside
12.6 km PM2.5: 23.0 µg/m³
39
EHS Building
14.8 km PM2.5: 9.4 µg/m³
48
Emerbee's
15.0 km PM2.5: 11.6 µg/m³
48
4001 Iowa Ave Riverside CA
15.1 km PM2.5: 11.6 µg/m³
32
C&C Center
15.7 km PM2.5: 7.6 µg/m³
93
Lake Gregory (Crestline), San Bernardino
17.7 km PM2.5: 32.1 µg/m³

What cities are near Rialto?

60 Fontana 60 Colton 54 San Bernardino 54 Loma Linda 60 Rubidoux 60 Glen Avon 54 Highland 60 Riverside 54 Redlands 60 Jurupa Valley
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-08-07T23:56 UTC.