Air Quality in St. Charles, United States

Drizzle
13.0°C · 82.5% humidity
13.0°
Feels 13.0°
35
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model

Nearby Monitoring Stations

AQI Forecast Calibrated
35 12am
35
38
40 3am
53
40
40 6am
28
15
15 9am
15
28
28 12pm
28
28
28 3pm
40
40
40 6pm
40
40
40 9pm
28
28
Station readings
35
35
38
CAMS model adj +3
37
37
37
37
50
37
37
25
12
12
12
25
25
25
25
25
37
37
37
37
37
37
25
25
AD 728×90

PM2.5 Trend (24h)

24h · 100 stations
82.5%
Humidity
90.2 km/h
Wind SW
1017.1 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

What is the weather forecast for St. Charles?

Temperature & Precipitation

PM2.58.43 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250

What is the 7-day forecast for St. Charles?

04-10
16.5° 6.4°
11.87 mm
04-11
9.1° 3.4°
19.38 mm
04-12
17.1° 8.7°
1.56 mm
04-13
24.1° 16.3°
0.94 mm
04-14
23.3° 15.4°
18.12 mm
04-15
12.7° 3.0°
0.19 mm
04-16
11.6° 3.1°
0.06 mm
Both models agree Avg diff: 6.5°C

Where are air quality stations near St. Charles?

30
Naperville, Illinois, USA
20.5 km

What cities are near St. Charles?

35 Geneva 35 Batavia 35 Wasco 35 South Elgin 35 West Chicago 35 North Aurora 34 Bartlett 35 Elgin 33 Carol Stream 34 Streamwood

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-10T03:44 UTC.