Air Quality in Fontana, United States

Windy
30.8°C · 22.0% humidity
30.8°
Feels 30.8°
40
Good
Air quality is satisfactory. Enjoy outdoor activities.
5 stations

Nearby Monitoring Stations

AQI Forecast
54 7am
54
54
40 10am
44
47
49 1pm
50
51
52 4pm
53
65
53 7pm
54
54
54 10pm
54
54
54 1am
54
54
66 4am
66
54
AD 728×90

Air Quality Index Trend

46h · 6 stn

Fontana's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

22.0%
Humidity
51.1 km/h
Wind S
1009.2 hPa
Pressure
14.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
40
9.48 µg/m³
PM10
31
34.3 µg/m³
050100150200300500

What is the weather forecast for Fontana?

Temperature & Precipitation

PM2.5 Trend

46h · 6 stations
PM2.59.48 µg/m³ ✓ WHO
Good
PM1034.3 µg/m³
Good
UV INDEX14.9
Extreme
AD 300×250
Station readings (5 stations within 25 km)
9.48
Median
9.1
Average
6.76
Low
10.75
High
PM2.5 µg/m³ · Model: 13.5 · Bias: +4.0

What is the 7-day forecast for Fontana?

07-21
30.8° 22.3°
07-22
32.5° 20.8°
07-23
32.8° 19.6°
0.38 mm
07-24
33.5° 21.3°
07-25
30.9° 21.2°
07-26
34.2° 18.6°
07-27
33.8° 20.8°
Both models agree Avg diff: 2.9°C

Where are air quality stations near Fontana?

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

What cities are near Fontana?

42 Rialto 38 Glen Avon 38 Rubidoux 42 Colton 38 Jurupa Valley 43 San Bernardino 44 Rancho Cucamonga 37 Riverside 38 Loma Linda 37 Eastvale
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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 2026-07-21T17:14 UTC.