Air Quality in Fontana, United States

Drizzle
9.4°C · 81.0% humidity
9.4°
Feels 4.5°
35
Good
Air quality is satisfactory. Enjoy outdoor activities.
5 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
35 12am
35
34
37 3am
37
37
37 6am
37
37
37 9am
37
37
37 12pm
37
37
37 3pm
37
12
12 6pm
12
0
0 9pm
0
0
Station readings
35
35
34
CAMS model adj -38
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
50
50
50
37
37
37
37
AD 728×90

PM2.5 Trend (24h)

23h · 10 stations
81.0%
Humidity
51.4 km/h
Wind SSW
1011.6 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Temperature & Precipitation

PM2.58.3 µg/m³ ✓ WHO
Good
PM1027.4 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
8.3
Median
8.56
Average
6.47
Low
11.24
High
PM2.5 µg/m³ · Model: 23.4 · Bias: +15.1
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°
04-16
21.3° 12.4°

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-10T03:40 UTC.