What is the air quality in Great Falls today?

The current Air Quality Index (AQI) in Great Falls is 24 (Good). PM2.5 concentration is 5.8 µg/m³.

What is the temperature in Great Falls right now?

The current temperature in Great Falls is 22.8°C (feels like 22.8°C). Humidity is 44.9% and wind speed is 2.9 km/h.

Is it safe to go outside in Great Falls?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 19.9 (Extreme).

Air Quality in Great Falls, United States

Clear

22.8°C · 44.9% humidity

22.8°

Feels 22.8°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Model forecast

Nearby Monitoring Stations

AQI Forecast

24 11am

24 2pm

24 5pm

24 8pm

24 11pm

24 2am

24 5am

24 8am

View AQI history for Great Falls →

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.

44.9%

Humidity

2.9 km/h

Wind ESE

1005.6 hPa

Pressure

19.9

UV Extreme

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 INDEX19.9

Extreme

Both models agree Avg diff: 4.6°C

What cities are near Great Falls?

24 Helena 24 Butte 24 Bozeman 18 Missoula 10 Kalispell 5 Lethbridge 10 Medicine Hat 15 Billings

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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-06-08T20:44 UTC.