Air Quality in Rialto, United States

Clear
28.0°C · 45.8% humidity
28.0°
Feels 29.7°
42
Good
Air quality is satisfactory. Enjoy outdoor activities.
7 stations

Nearby Monitoring Stations

AQI Forecast
27 7am
25
25
42 10am
37
34
31 1pm
29
30
29 4pm
29
26
28 7pm
28
27
34 10pm
34
54
54 1am
54
34
34 4am
27
27
AD 728×90

Air Quality Index Trend

45h · 9 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.

45.8%
Humidity
32.5 km/h
Wind SW
1016.7 hPa
Pressure
7.9
UV Very High
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
42
10.08 µg/m³
PM10
25
27.45 µg/m³
050100150200300500

What is the weather forecast for Rialto?

Temperature & Precipitation

PM2.5 Trend

45h · 9 stations
PM2.510.08 µg/m³ ✓ WHO
Good
PM1027.45 µg/m³
Good
UV INDEX7.9
Very High
AD 300×250
Station readings (7 stations within 25 km)
10.08
Median
8.48
Average
5.65
Low
14.5
High
PM2.5 µg/m³ · Model: 9.75 · Bias: -0.3

What is the 7-day forecast for Rialto?

09-05
29.1° 19.5°
09-06
32.0° 18.0°
0.31 mm
09-07
34.8° 18.6°
0.56 mm
09-08
35.6° 10.7°
0.31 mm
09-09
32.0° 15.7°
09-10
31.8° 11.8°
09-11
37.5° 16.4°
Both models agree Avg diff: 5.7°C

Where are air quality stations near Rialto?

45
San Bernardino
4.1 km PM2.5: 10.8 µg/m³
56
Rubidoux - Mission Blvd, Riverside
12.6 km PM2.5: 14.5 µg/m³
17
Rubidoux - Mission Blvd, Riverside
12.6 km PM2.5: 4.1 µg/m³
25
EHS Building
14.8 km PM2.5: 6.0 µg/m³
31
Emerbee's
15.0 km PM2.5: 7.5 µg/m³
32
4001 Iowa Ave Riverside CA
15.1 km PM2.5: 7.6 µg/m³
24
C&C Center
15.7 km PM2.5: 5.7 µg/m³
31
Lake Gregory (Crestline), San Bernardino
17.7 km PM2.5: 7.4 µg/m³
33
Lake Gregory (Crestline), San Bernardino
17.7 km PM2.5: 7.9 µg/m³

What cities are near Rialto?

41 Fontana 41 Colton 42 San Bernardino 34 Loma Linda 55 Rubidoux 46 Glen Avon 36 Highland 37 Riverside 34 Redlands 43 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 2026-09-05T17:02 UTC.