Air Quality in Rialto, United States

Windy
31.1°C · 20.2% humidity
31.1°
Feels 31.1°
41
Good
Air quality is satisfactory. Enjoy outdoor activities.
5 stations

Nearby Monitoring Stations

AQI Forecast
54 7am
54
54
41 10am
45
47
49 1pm
51
52
52 4pm
53
53
53 7pm
54
54
54 10pm
54
54
54 1am
54
54
54 4am
54
66
AD 728×90

Air Quality Index Trend

46h · 6 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.

20.2%
Humidity
48.2 km/h
Wind SSW
1009.1 hPa
Pressure
7.9
UV Very High
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
41
9.95 µg/m³
PM10
31
34.3 µg/m³
050100150200300500

What is the weather forecast for Rialto?

Temperature & Precipitation

PM2.5 Trend

46h · 6 stations
PM2.59.95 µg/m³ ✓ WHO
Good
PM1034.3 µg/m³
Good
UV INDEX7.9
Very High
AD 300×250
Station readings (5 stations within 25 km)
9.95
Median
8.85
Average
6.57
Low
10.38
High
PM2.5 µg/m³ · Model: 13.5 · Bias: +3.5

What is the 7-day forecast for Rialto?

07-21
31.1° 22.5°
07-22
33.3° 20.7°
07-23
33.2° 20.4°
1.44 mm
07-24
34.1° 22.2°
0.19 mm
07-25
30.2° 21.8°
07-26
35.2° 19.1°
07-27
34.0° 21.1°
Both models agree Avg diff: 3.7°C

Where are air quality stations near Rialto?

44
San Bernardino
4.1 km PM2.5: 10.5 µg/m³
57
Rubidoux - Mission Blvd, Riverside
12.6 km PM2.5: 15.0 µg/m³
165
Rubidoux - Mission Blvd, Riverside
12.6 km PM2.5: 82.6 µg/m³
35
EHS Building
14.8 km PM2.5: 8.5 µg/m³
45
Emerbee's
15.0 km PM2.5: 10.8 µg/m³
38
4001 Iowa Ave Riverside CA
15.1 km PM2.5: 9.0 µg/m³
28
C&C Center
15.7 km PM2.5: 6.8 µg/m³
36
Lake Gregory (Crestline), San Bernardino
17.7 km PM2.5: 8.6 µg/m³
174
Lake Gregory (Crestline), San Bernardino
17.7 km PM2.5: 100.0 µg/m³

What cities are near Rialto?

38 Fontana 41 Colton 42 San Bernardino 37 Loma Linda 36 Rubidoux 37 Glen Avon 39 Highland 36 Riverside 37 Redlands 37 Jurupa 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 2026-07-21T17:13 UTC.