Air Quality in Great Falls, United States

Windy
10.9°C · 38.7% humidity
10.9°
Feels 10.9°
28
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model

Nearby Monitoring Stations

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

PM2.5 Trend (24h)

23h · 1 station
38.7%
Humidity
43.2 km/h
Wind SSE
1030.7 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

What is the weather forecast for Great Falls?

Temperature & Precipitation

PM2.56.64 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX1.4
Low
AD 300×250

What is the 7-day forecast for Great Falls?

04-10
19.2° 6.6°
04-11
22.2° 10.7°
04-12
22.6° 13.0°
04-13
27.6° 14.1°
04-14
29.3° 17.7°
04-15
25.0° 19.8°
04-16
17.8° 10.7°
2.81 mm
Both models agree Avg diff: 3.5°C

Where are air quality stations near Great Falls?

55
Ashburn - Broad Run High School, Northern Virginia, USA
17.6 km
66
Ashburn - Broad Run High School, Northern Virginia, USA
17.6 km
32
Rockville, Maryland, USA
20.3 km
103
Aurora Hills Visitor Center, Northern Virginia, USA
25.2 km
52
Aurora Hills Visitor Center, Northern Virginia, USA
25.2 km
26
Aurora Hills Visitor Center, Northern Virginia, USA
25.2 km
60
Lee District Park - Fairfax County, Northern Virginia, USA
29.6 km
36
Lee District Park - Fairfax County, Northern Virginia, USA
29.6 km

What cities are near Great Falls?

21 Reston 28 Wolf Trap 22 Potomac 21 Herndon 22 North Potomac 28 Tysons 28 Vienna 28 McLean 15 Sterling 15 Oak Hill

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-10T02:43 UTC.