Air Quality in Helena, United States

Partly Cloudy
7.0°C · 58.4% humidity
7.0°
Feels 3.9°
38
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model

Nearby Monitoring Stations

AQI Forecast
12 4pm
12
12
12 7pm
12
12
12 10pm
12
12
12 1am
12
12
12 4am
25
25
25 7am
25
25
25 10am
25
25
25 1pm
25
12
AD 728×90
58.4%
Humidity
16.8 km/h
Wind SW
1014.1 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Temperature & Precipitation

PM2.59.12 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX1.4
Low
AD 300×250
04-09
7.0° -3.7°
0.44 mm
04-10
11.0° -0.6°
04-11
17.4° 6.7°
0.06 mm
04-12
12.8° 2.3°
16.13 mm
04-13
6.7° -2.0°
0.13 mm
04-14
7.4° -0.1°
0.44 mm
04-15
8.2° -1.9°
1.75 mm
Both models agree Avg diff: 5.1°C

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T19:02 UTC.