Air Quality in Great Falls, United States
Clear
31.8°C · 21.7% humidity
31.8°
Feels 31.8°
24
Good
Air quality is satisfactory. Enjoy outdoor activities.
Model forecast
Nearby Monitoring Stations
Great Falls's air quality — share it
AQI Forecast
24
3pm
24
24
24
6pm
24
24
24
9pm
24
25
25
12am
25
25
25
3am
25
25
25
6am
25
25
25
9am
25
25
25
12pm
25
25
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. Current PM2.5 concentration in Great Falls is 1.2× the WHO annual guideline of 5 µg/m³.
21.7%
Humidity
33.9 km/h
Wind SE
1010.3 hPa
Pressure
2.9
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
5.8 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Great Falls?
Temperature & Precipitation
PM2.55.8 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX2.9
Moderate
What is the 7-day forecast for Great Falls?
05-29
31.8° 7.1°
05-30
32.8° 11.7°
05-31
32.9° 14.2°
0.19 mm
06-01
34.1° 7.1°
0.75 mm
06-02
13.0° 5.1°
0.13 mm
06-03
24.2° 5.9°
0.06 mm
06-04
25.9° 12.1°
Both models agree
Avg diff: 4.4°C
What cities are near Great Falls?
Get AQI alerts for Great Falls
Notify me when air quality reaches:
Free · No account · Unsubscribe any time
Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-05-29T00:22 UTC.