Air Quality in Fairfax, United States

Drizzle
25.9°C · 54.3% humidity
25.9°
Feels 25.9°
25
Good
Air quality is satisfactory. Enjoy outdoor activities.
Model forecast

Nearby Monitoring Stations

AQI Forecast
27 8pm
27
27
25 11pm
25
25
25 2am
25
25
25 5am
25
27
27 8am
27
27
27 11am
25
25
25 2pm
25
25
25 5pm
27
34
AD 728×90

Air Quality Index Trend

45h · 31 stn

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

54.3%
Humidity
5.6 km/h
Wind NW
1012.2 hPa
Pressure
2.2
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
25
6.0 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Fairfax?

Temperature & Precipitation

PM2.5 Trend

45h · 31 stations
PM2.56.0 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX2.2
Moderate
AD 300×250

What is the 7-day forecast for Fairfax?

08-03
25.9° 19.9°
5.0 mm
08-04
37.7° 22.6°
08-05
34.6° 19.7°
0.69 mm
08-06
31.1° 22.4°
08-07
34.2° 21.1°
2.19 mm
08-08
37.3° 21.9°
0.69 mm
08-09
35.9° 23.2°
0.56 mm
Both models agree Avg diff: 3.0°C

Where are air quality stations near Fairfax?

16
Lee District Park - Fairfax County, Northern Virginia, USA
19.3 km PM2.5: 3.8 µg/m³
22
Aurora Hills Visitor Center, Northern Virginia, USA
21.4 km PM2.5: 5.3 µg/m³
16
Aurora Hills Visitor Center, Northern Virginia, USA
21.4 km PM2.5: 3.8 µg/m³
30
3414 Nebraska Ave NW
21.7 km PM2.5: 7.2 µg/m³
34
GW Milken Institute School of Public Health
23.0 km PM2.5: 8.1 µg/m³
33
Aslin
24.9 km PM2.5: 7.9 µg/m³
34
400 Virginia Ave SW
25.3 km PM2.5: 8.1 µg/m³
38
Ashburn - Broad Run High School, Northern Virginia, USA
25.4 km PM2.5: 9.1 µg/m³
31
Ashburn - Broad Run High School, Northern Virginia, USA
25.4 km PM2.5: 7.4 µg/m³
15
Ashburn - Broad Run High School, Northern Virginia, USA
25.4 km PM2.5: 3.6 µg/m³

What cities are near Fairfax?

25 Oakton 26 Burke 26 Vienna 26 Merrifield 26 Annandale 26 Idylwood 37 Tysons 26 West Falls Church 37 Wolf Trap 25 Centreville
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-08-08T03:00 UTC.