Air Quality in St. Charles, United States

Clear
15.0°C · 27.6% humidity
15.0°
Feels 15.0°
16
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model

Nearby Monitoring Stations

AQI Forecast Calibrated
26 5pm
26
26
26 8pm
26
26
26 11pm
26
26
26 2am
26
39
39 5am
39
39
39 8am
39
64
64 11am
64
64
64 2pm
64
39
Station readings
26
26
CAMS model adj -11
37
37
37
37
37
37
37
37
37
37
37
50
50
50
50
50
50
75
75
75
75
75
75
50
AD 728×90

PM2.5 Trend (24h)

22h · 1 station
27.6%
Humidity
38.1 km/h
Wind SSE
1033.4 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

What is the weather forecast for St. Charles?

Temperature & Precipitation

PM2.53.75 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?

04-09
15.0° 0.9°
04-10
20.1° 5.4°
04-11
23.1° 9.1°
04-12
23.2° 13.8°
04-13
28.6° 13.1°
04-14
29.3° 17.2°
04-15
24.0° 20.5°
Both models agree Avg diff: 3.8°C

Where are air quality stations near St. Charles?

24
Lee District Park - Fairfax County, Northern Virginia, USA
24.2 km
22
Lee District Park - Fairfax County, Northern Virginia, USA
24.2 km
22
Lee District Park - Fairfax County, Northern Virginia, USA
24.2 km

What cities are near St. Charles?

16 Saint Charles 16 Waldorf 29 Fort Washington 24 Clinton 29 Fort Hunt 28 Hybla Valley 26 Oxon Hill-Glassmanor 26 Camp Springs 26 Oxon Hill 26 Glassmanor

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T20:24 UTC.