Air Quality in Fontana, United States

Windy
12.6°C · 78.8% humidity
12.6°
Feels 12.6°
69
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
5 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
56 3pm
56
55
26 6pm
26
26
26 9pm
26
26
26 12am
26
26
26 3am
26
26
26 6am
26
26
26 9am
26
26
26 12pm
26
26
Station readings
56
56
55
CAMS model adj -49
136
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
AD 728×90

PM2.5 Trend (24h)

23h · 10 stations
78.8%
Humidity
56.9 km/h
Wind S
1013.2 hPa
Pressure
2.2
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

What is the weather forecast for Fontana?

Temperature & Precipitation

PM2.520.8 µg/m³ ×1.4 WHO
Moderate
PM1020.55 µg/m³
Good
UV INDEX2.2
Moderate
AD 300×250
Station readings (5 stations within 25 km)
20.8
Median
19.01
Average
13.6
Low
22.45
High
PM2.5 µg/m³ · Model: 17.65 · Bias: -3.2

What is the 7-day forecast for Fontana?

04-09
19.6° 9.2°
0.06 mm
04-10
14.6° 8.7°
7.13 mm
04-11
9.1° 5.7°
27.19 mm
04-12
8.2° 3.1°
1.5 mm
04-13
10.7° 3.1°
0.62 mm
04-14
15.6° 7.0°
04-15
18.9° 11.0°
Both models agree Avg diff: 3.5°C

Where are air quality stations near Fontana?

71
San Bernardino
10.2 km PM2.5: 21.4 µg/m³
75
Rubidoux - Mission Blvd, Riverside
10.5 km
69
4001 Iowa Ave Riverside CA
15.8 km PM2.5: 20.6 µg/m³
69
Emerbee's
16.2 km PM2.5: 20.8 µg/m³
62
EHS Building
16.4 km PM2.5: 17.5 µg/m³
54
C&C Center
17.1 km PM2.5: 13.6 µg/m³
46
Lake Gregory (Crestline), San Bernardino
22.5 km
52
Lake Gregory (Crestline), San Bernardino
22.5 km

What cities are near Fontana?

69 Rialto 69 Glen Avon 69 Rubidoux 69 Colton 69 Jurupa Valley 69 San Bernardino 73 Rancho Cucamonga 69 Riverside 69 Loma Linda 66 Eastvale

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T18:44 UTC.