AQI

Montana Air Quality Index & Realtime Air Pollution

Live AQI
38(AQI-US)
Air Quality is
Good
PM2.5 :2.6µg/m³
PM10 :3.2µg/m³
Good
Moderate
Poor
Unhealthy
Severe
Hazardous
050100150200300301+
Good air quality mascot

Primary Air Pollutants Montana

PM2.53µg/m³
PM2.5
Fine particles
PM103µg/m³
PM10
Coarse particles
SO₂0µg/m³
SO₂
Sulphur dioxide
CO113µg/m³
CO
Carbon monoxide
NO₂0µg/m³
NO₂
Nitrogen dioxide
O₃84µg/m³
O₃
Ozone

Hourly forecast Montana

Now19°
Clear sky
19:0019°
Clear sky
20:0017°
Clear sky
21:0015°
Clear sky
22:0013°
Clear sky
23:0012°
Overcast
00:0011°
Overcast
01:0011°
Overcast
02:0010°
Overcast
03:0010°
Overcast
04:0012°
Overcast
05:0012°
Moderate drizzle
06:0011°
Light drizzle
07:0011°
Overcast
08:0013°
Overcast
09:0014°
Slight rain
10:0014°
Dense drizzle
11:0015°
Light drizzle
12:0016°
Partly cloudy
13:0017°
Overcast
14:0018°
Light drizzle
15:0016°
Moderate rain
16:0015°
Light drizzle
17:0018°
Clear sky

Health Recommendations for Montana Residents

Based on current air quality: Good · AQI 38

Good
Air Purifier
Air PurifierTurn Off
Car Filter
Car FilterAdvisable
N95 Mask
N95 MaskAdvisable
Stay Indoor
Stay IndoorAdvisable

UV Index

1.5

Low

Safe to be outside. Minimal UV risk.

Wind

12.2 km/h

Light breeze — leaves rustling gently.

AQI Graph

Historical AQI Data Montana

19
Min. AQIat 6:00 AM on 3rd Jun
39
Max. AQIat 7:00 PM on 3rd Jun
03-06-2026Time04-06-2026

United States Major Cities AQI Overview


Most Polluted Cities by AQI United States

119
Poor3x above Standard
93
Moderate2x above Standard
81
Moderate2x above Standard
79
Moderate1x above Standard
75
Moderate1x above Standard
75
Moderate3x above Standard
75
Moderate3x above Standard
73
Moderate2x above Standard
72
Moderate1x above Standard
67
Moderate1x above Standard
Last Updated: 03 Jun 2026, 22:43

Health Advice For People Living in Montana

0.1
Cigarettes
per day
Weekly0.7 Cigarettes
Monthly3 Cigarettes

Breathing the air in this location is equivalent to smoking 0.1 cigarettes a day.

Disclaimer: This cigarette-equivalent estimate is calculated using the average PM2.5 concentration from the past 24 hours, assuming constant exposure throughout that period.
Solutions for Montana Current AQI (US)
Air Purifier
Air PurifierTurn Off
Car Filter
Car FilterAdvisable
N95 Mask
N95 MaskAdvisable
Stay Indoor
Stay IndoorAdvisable
Must turn on the air purifier to enjoy fresh air.Get an Air Purifier

Prevent Health Problems: Understand Your Risks

Montana · Current air quality: Good · AQI 38

Low Trigger Risk

Headaches

Risk of Headaches symptoms is Low when AQI of Montana is Good (0-50).

Common signs

Early signs may include: Pressure or tightness around the forehead and temples, Sensitivity to light or smell, Fatigue or difficulty concentrating.

Do’s :
  • Favor indoor, filtered indoor air when the AQI is worse.
  • Hydrate and take breaks from screens or bright light if you are migraine-prone.
  • If you Try prescribed migraine meds, Have them accessible.
Don’ts :
  • Do not do intense outdoor exercise during elevated AQI periods.
  • Avoid ignore worsening effects that feel unusual for you.

Disclaimer: The health risks mentioned above are precautionary recommendations based on current AQI levels. While you may not experience immediate effects, prolonged exposure to air pollution can lead to these health issues over time. This is not medical advice. Please consult a clinician if you experience severe, unusual, or worsening symptoms.

Montana's Major Cities AQI

State: Montana
Population: 164,731
Check AQI
State: Montana
Population: 118,960
Check AQI
State: Montana
Population: 71,022
Check AQI
State: Montana
Population: 696
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Air Quality FAQs at Montana

The current real-time AQI (US) level in Montana is 38 (Good). This was last updated recently.

The best AQI (US) level was generally lower during the early afternoon in the last 24 hours.

The worst AQI (US) level typically peaks during early morning or late evening hours due to temperature inversion.

The AQI (US) levels in Montana have been fluctuating throughout the last 24 hours depending on traffic and weather conditions.

Current AQI (US) levels are good for everyone. It's advised to adjust your outdoor activities based on personal sensitivity.