Air Quality in Rialto, United States

Windy
32.2°C · 13.9% humidity
32.2°
Feels 32.2°
22
Good
Air quality is satisfactory. Enjoy outdoor activities.
7 stations

Nearby Monitoring Stations

AQI Forecast
34 11am
34
34
22 2pm
25
28
30 5pm
24
25
25 8pm
26
33
33 11pm
34
34
34 2am
34
34
34 5am
54
54
34 8am
34
34
AD 728×90

Air Quality Index Trend

46h · 17 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 1.0× the WHO annual guideline of 5 µg/m³.

13.9%
Humidity
49.9 km/h
Wind SSW
1011.2 hPa
Pressure
24.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
22
5.15 µg/m³
PM10▲
25
27.4 µg/m³
050100150200300500

What is the weather forecast for Rialto?

Temperature & Precipitation

PM2.5 Trend

46h · 17 stations
PM2.55.15 µg/m³ ✓ WHO
Good
PM1027.4 µg/m³
Good
UV INDEX24.9
Extreme
AD 300×250
Station readings (7 stations within 25 km)
5.15
Median
5.13
Average
3.93
Low
8.6
High
PM2.5 µg/m³ · Model: 8.2 · Bias: +3.0

What is the 7-day forecast for Rialto?

05-28
28.6° 13.8°
05-29
32.2° 13.6°
05-30
19.5° 9.9°
05-31
28.5° 17.0°
06-01
31.6° 12.6°
06-02
28.2° 9.8°
06-03
29.2° 6.9°
Both models agree Avg diff: 4.5°C

Where are air quality stations near Rialto?

21
San Bernardino
4.1 km PM2.5: 5.0 µg/m³
36
Rubidoux - Mission Blvd, Riverside
12.6 km PM2.5: 8.6 µg/m³
25
Rubidoux - Mission Blvd, Riverside
12.6 km PM2.5: 6.0 µg/m³
16
EHS Building
14.8 km PM2.5: 3.9 µg/m³
21
Emerbee's
15.0 km PM2.5: 5.0 µg/m³
18
4001 Iowa Ave Riverside CA
15.1 km PM2.5: 4.4 µg/m³
17
C&C Center
15.7 km PM2.5: 4.0 µg/m³
21
Lake Gregory (Crestline), San Bernardino
17.7 km PM2.5: 5.0 µg/m³
10
Lake Gregory (Crestline), San Bernardino
17.7 km PM2.5: 2.4 µg/m³

What cities are near Rialto?

24 Fontana 21 Colton 21 San Bernardino 20 Loma Linda 35 Rubidoux 28 Glen Avon 21 Highland 23 Riverside 20 Redlands 26 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 2026-05-28T21:46 UTC.