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Great Falls Air Quality Index (AQI) | Air Pollution

Real-time PM2.5, PM10 air pollution level in Great Falls

Last Updated: 2026-08-09 22:31 (Local Time)

Live AQI

112AQI (US)

Air Quality is

Poor

PM2.5 : 40 µg/m³

pm10 : 71 µg/m³

Good

050

Moderate

100

Poor

150

Unhealthy

200

Severe

300

Hazardous

301+

22 °C

Last Updated: 2026-08-09 22:31 (Local Time)

Rank136^th

Currently, Great Falls ranks 136^th among the cities with the highest AQI levels in the world.

Map

Great Falls

Major Air Pollutants
Great Falls

Particulate Matter(PM₂.₅)

40µg/m³

Particulate Matter(PM₁₀)

71µg/m³

Carbon Monoxide(CO)

373ppb

Sulfur Dioxide(SO₂)

2ppb

Nitrogen Dioxide(NO₂)

4ppb

Ozone(O₃)

53ppb

AQI Graph

Historical Air Quality Data
Great Falls

24 Hours

AQI (US)

Great Falls

AQI (US)

08-08-2026Time09-08-2026

Time	Great Falls
10:31pm	95
11:01pm	92
11:31pm	88
12:01am	82
12:31am	83
1:01am	92
1:31am	85
2:01am	89
2:31am	82
3:01am	56
3:31am	56
4:01am	64
4:31am	64
5:01am	81
5:31am	80
6:01am	85
6:31am	87
7:01am	98
7:31am	94
8:01am	96
8:31am	98
9:01am	96
9:31am	90
10:01am	98
10:31am	109
11:01am	99
11:31am	92
12:01pm	96
12:31pm	83
1:01pm	86
1:31pm	82
2:01pm	122
2:31pm	132
3:01pm	130
3:31pm	126
4:01pm	140
4:31pm	129
5:01pm	140
5:31pm	145
6:01pm	134
6:31pm	132
7:01pm	128
7:31pm	129
8:01pm	111
8:31pm	118
9:01pm	110
9:31pm	118
10:01pm	108
10:31pm	112

Min. AQI (US)3:01am

145

Max. AQI (US)5:31pm

Want air quality data?

AQI (US) Trends - Annual Air Quality Changes
Great Falls, Montana, United States

AQI (US)

Great Falls's Locations
Real-time Air Pollution Level

locations

Status

AQI (US)

PM₂.₅(µg/m³)

PM₁₀(µg/m³)

Temp.(°C)

Humi.(%)

10th Avenue South

Poor

114

Great Falls Overlook Park

Poor

109

United States's Metro Cities
Air Quality Index

Chicago

Los Angeles

Minneapolis

Nashville

New Orleans

New York City

San Francisco

Washington

Air Quality Calendar 2026
Great Falls

2026

AQI (US)

Health Advice For People Living In
Great Falls

1.6Cigarettes per day

Weekly 11.2 Cigarettes

Monthly 48 Cigarettes

Breathing the air in this location is as harmful as smoking 1.6 cigarettes a day.

Source:

Berkeley Earth

Disclaimer: This cigarette-equivalent estimate is based on the average PM2.5 concentration over the last 24 hours, assuming continuous exposure during that time.

Solutions for Current AQI (US)

Air PurifierTurn On

Car FilterMust

N95 MaskMust

Stay IndoorMust

Prevent Health Problems: Understand Your Risks

Great Falls

Asthma

Heart Issues

Allergies

Sinus

Cold/Flu

Chronic (COPD)

Disclaimer: The above health risks are precautionary suggestions based on current AQI levels. You may not feel the effects immediately, but prolonged exposure to air pollution can contribute to these health conditions over time. AQI.IN is neither a medical expert nor a provider of medical advice. Please consult a doctor if you experience any of the above similar symptoms.

Most Polluted Cities 2026
United States

Analyze the real-time most air polluted cities in the country.

Most Polluted Cities Live Ranking 2026

World's Most PollutedCity Rankings (2025)

World's Most PollutedCountry Rankings(2025)

RankCityAQI Status

Standard Value

Columbia Falls, Montana

Unhealthy

7xabove Standard

Sandpoint, Idaho

Unhealthy

7xabove Standard

Colville, Washington

Unhealthy

6xabove Standard

Missoula, Montana

Unhealthy

5xabove Standard

Chelan, Washington

Unhealthy

5xabove Standard

Quincy, Washington

Unhealthy

4xabove Standard

Omak, Washington

Unhealthy

6xabove Standard

Casa Grande, Arizona

Poor

2xabove Standard

Lewistown, Montana

Poor

3xabove Standard

10.

Yakima, Washington

Poor

3xabove Standard

Last Updated: 10 Aug 2026, 04:31 AM

AQI City Rankings

Air Quality Solutions For Great Falls
Explore the solutions of air quality monitoring & clean air.

Here are some applications that you can go through to find out the solutions.

Air Quality Monitor

Monitor the air quality

Air Quality Sensors

Sensors to measure the air quality

Fresh Air Machine

Clean the air you breathe

Car Cabin Filter

Purify the air in your car

N95 Mask

Shield yourself from pollution

Prana Air offers the solutions of air quality monitoring and clean air machine for Great Falls

Air Quality Solution For Offices

A complete solution for air quality monitoring, data analysis, and fresh air solutions in workplaces prioritizing employee's health and productivity.

Air Quality Solutions For Smart City

Prana Air smart city project provides air quality monitors, drones, outdoor air purifiers, and data dashboards solution to improve air quality.

Air Quality Solutions for Schools | Institutes

Prana Air provides the air quality solutions for schools by air monitoring & fresh air machine that help the students to breather clean air.

Air Quality Solutions For Hotels

Prana Air air quality solutions are suited for hotel businesses. The occupancy of hotels is the main reasons for bad air quality.

Air Quality Solutions for Restaurants

Prana Air has the air quality solutions for restaurant, cafes, and gives you the power to know what your customers and staff breathe.

Air Quality Solutions for RMC Plants

Prana Air provides air quality monitoring solutions for RMC plants. Improve compliance, protect workers and community, and reduce emissions.

Air Quality Solutions for Fitness Center

Prana Air provides the air quality solutions of pollution monitoring and fresh air for fitness center - gym.

Air Quality Solutions for Parking Lot

A complete solution for air monitoring, data analysis, and fresh air solutions for enclosed car parking areas and car lots.

Air Quality Solutions for Retail Stores

Prana Air provides air quality solutions of pollution monitoring and fresh air for retail stores and shopping outlets.

Prana Air provides air quality solutions of pollution monitoring and fresh air for retail stores and shopping outlets

Prana Air provides the air quality solutions for airport. Gathering of many passengers is the main reasons of bad air quality in airport.

Air Quality Solutions For Construction Sites

Prana Air offers air quality monitoring solutions for construction sites with data cloud storage, web-dashboard, mobile apps, TV display.

Air Quality Solutions For Hospitals

Prana Air provides air quality monitoring and fresh air solutions for hospitals to ensure clean and healthy indoor air.

Air Quality Solutions For Washroom | Bathroom

Improve washroom and bathroom air quality with Prana Air air quality monitoring devices and fresh air machine. Breathe easy and stay healthy.

Air Quality Solutions for Banks

Prana Air provides air quality solutions of pollution monitoring and fresh air for banks and financial institutions.

Air Quality Solutions for Cinema

Air quality solutions for cinema halls or theatres will help the customers to get the good experience, comfort and breathe clean air.

Air Quality Solutions For Real Estates

Prana Air provides the air quality solutions of pollution monitoring and fresh air for real estates - residential and commercial.

Great Falls's AQI Data Analytics Solutions
Air quality data monitoring platforms

Mobile App

Smart TV App

Web Dashboard

API

Widgets

Air Quality FAQs
at Great Falls

Frequently Asked Questions About Air Quality

1. What is the current AQI (US) level in Great Falls?

The current real-time AQI (US) level in Great Falls is 112 (Poor). This was last updated 2026-08-09 22:31 (Local Time).

2. When was the best AQI (US) level in Great Falls in the last 24 hours?

The best AQI (US) level was 56 (Moderate) at 3:01 AM, Aug 9, 2026 (Local Time) during the last 24 hours.

3. When was the worst AQI (US) level in Great Falls in the last 24 hours?

The worst AQI (US) level was 145 (Poor) at 5:31 PM, Aug 9, 2026 (Local Time) during the last 24 hours.

4. What is the current trend of AQI (US) levels in Great Falls during last 24 hours?

The AQI (US) levels in Great Falls have been fluctuating throughout the last 24 hours. The levels have increased by highest 145 at 5:31 PM, Aug 9, 2026 (Local Time), lowest 56 at 3:01 AM, Aug 9, 2026 (Local Time).

5. What actions are recommended as per the current AQI (US) level in Great Falls?

Current AQI (US) levels are unhealthy for Sensitive individuals, they should reduce prolonged or heavy outdoor exertion.