Air Quality in Great Falls, United States
Rain
19.7°C · 58.1% humidity
19.7°
Feels 19.7°
17
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station
Nearby Monitoring Stations
Great Falls's air quality — share it
AQI Forecast
34
3pm
27
27
17
6pm
20
29
30
9pm
31
32
26
12am
26
24
25
3am
25
25
25
6am
25
25
25
9am
25
25
24
12pm
24
24
Air Quality Index Trend
47h · 2 stnGreat 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.
58.1%
Humidity
31.1 km/h
Wind NW
1019.7 hPa
Pressure
2.9
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
4.1 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Great Falls?
Temperature & Precipitation
PM2.5 Trend
47h · 2 stationsPM2.54.1 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX2.9
Moderate
Station readings (1 station within 25 km)
4.1
Median
4.1
Average
4.1
Low
4.1
High
PM2.5 µg/m³ · Model: 6.25 · Bias: +2.2
What is the 7-day forecast for Great Falls?
05-28
26.7° 21.9°
1.37 mm
05-29
27.2° 9.5°
8.19 mm
05-30
23.8° 16.9°
5.19 mm
05-31
30.3° 10.4°
06-01
31.3° 13.7°
2.69 mm
06-02
25.5° 14.3°
06-03
26.3° 18.8°
7.44 mm
Both models agree
Avg diff: 3.9°C
Where are air quality stations near Great Falls?
13
Ashburn - Broad Run High School, Northern Virginia, USA
42
Aurora Hills Visitor Center, Northern Virginia, USA
49
Lee District Park - Fairfax County, Northern Virginia, USA
What cities are near Great Falls?
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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 2026-05-28T22:59 UTC.