Air Quality in Great Falls, United States

Clear
17.2°C · 44.2% humidity
17.2°
Feels 17.2°
20
Good
Air quality is satisfactory. Enjoy outdoor activities.
6 stations

Nearby Monitoring Stations

AQI Forecast
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Air Quality Index Trend

46h · 19 stn

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

44.2%
Humidity
18.9 km/h
Wind E
1021.2 hPa
Pressure
0.0
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
20
4.65 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Great Falls?

Temperature & Precipitation

PM2.5 Trend

46h · 19 stations
PM2.54.65 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.0
Low
Station readings (6 stations within 25 km)
4.65
Median
4.66
Average
4.19
Low
5.3
High
PM2.5 µg/m³ · Model: 6.5 · Bias: +1.9

What is the 7-day forecast for Great Falls?

10-20
17.2° 6.0°
6.31 mm
10-21
24.7° 6.9°
0.06 mm
10-22
20.7° 10.4°
0.13 mm
10-23
13.8° 5.2°
0.25 mm
10-24
17.6° 9.6°
0.19 mm
10-25
19.5° 6.4°
0.13 mm
10-26
15.7° 12.2°
21.75 mm
Both models agree Avg diff: 3.6°C

Where are air quality stations near Great Falls?

19
Ashburn - Broad Run High School, Northern Virginia, USA
17.6 km PM2.5: 4.6 µg/m³
18
Ashburn - Broad Run High School, Northern Virginia, USA
17.6 km PM2.5: 4.3 µg/m³
20
Ashburn - Broad Run High School, Northern Virginia, USA
17.6 km PM2.5: 4.8 µg/m³
20
3414 Nebraska Ave NW
19.0 km PM2.5: 4.9 µg/m³
37
Rockville, Maryland, USA
20.3 km PM2.5: 8.9 µg/m³
18
LAMB
22.6 km PM2.5: 4.2 µg/m³
20
Aslin
24.0 km PM2.5: 4.7 µg/m³
20
Center City Shaw Campus
25.1 km PM2.5: 4.9 µg/m³
19
Aurora Hills Visitor Center, Northern Virginia, USA
25.2 km PM2.5: 4.6 µg/m³
19
Aurora Hills Visitor Center, Northern Virginia, USA
25.2 km PM2.5: 4.6 µg/m³

What cities are near Great Falls?

19 Reston 19 Wolf Trap 20 Potomac 19 Herndon 20 North Potomac 19 Tysons 20 Vienna 19 McLean 19 Sterling 19 Oak Hill
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-10-20T20:56 UTC.