What is the air quality in Helena today?

The current Air Quality Index (AQI) in Helena is 25 (Good). PM2.5 concentration is 6.0 µg/m³.

What is the temperature in Helena right now?

The current temperature in Helena is 14.4°C (feels like 14.4°C). Humidity is 32.5% and wind speed is 21.0 km/h.

Is it safe to go outside in Helena?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Helena, United States

Clear

14.4°C · 32.5% humidity

14.4°

Feels 14.4°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Model forecast

Nearby Monitoring Stations

AQI Forecast

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View AQI history for Helena →

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

32.5%

Humidity

21.0 km/h

Wind N

1009.8 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

6.0 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Helena?

Temperature & Precipitation

PM2.56.0 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Both models agree Avg diff: 6.0°C

What cities are near Helena?

25 Butte 54 Great Falls 25 Bozeman 29 Missoula 29 Kalispell 25 Billings

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ModerateAQI > 50 Unhealthy for Sensitive GroupsAQI > 100 UnhealthyAQI > 150 Very UnhealthyAQI > 200

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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-10-21T01:11 UTC.