Air Quality in Fontana, United States

Clear
27.1°C · 47.6% humidity
27.1°
Feels 28.8°
30
Good
Air quality is satisfactory. Enjoy outdoor activities.
8 stations

Nearby Monitoring Stations

AQI Forecast
66 5am
66
66
30 8am
37
42
25 11am
21
22
24 2pm
25
32
33 5pm
33
53
54 8pm
54
54
54 11pm
54
54
54 2am
54
54
AD 728×90

Air Quality Index Trend

45h · 9 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.

47.6%
Humidity
32.0 km/h
Wind S
1017.0 hPa
Pressure
2.9
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous
PM2.5
30
7.11 µg/m³
PM10
38
41.15 µg/m³
050100150200300500

Temperature & Precipitation

PM2.5 Trend

45h · 9 stations
PM2.57.11 µg/m³ ✓ WHO
Good
PM1041.15 µg/m³
Good
UV INDEX2.9
Moderate
AD 300×250
7.11
Median
7.16
Average
4.1
Low
10.13
High
PM2.5 µg/m³ · Model: 16.35 · Bias: +9.2
09-05
28.6° 19.0°
09-06
32.8° 17.7°
09-07
34.7° 17.3°
1.13 mm
09-08
34.6° 12.6°
0.44 mm
09-09
31.0° 15.6°
09-10
31.8° 11.3°
09-11
36.6° 16.4°
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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 2026-09-05T15:53 UTC.