Longmont Air Quality Index (AQI) | Air Pollution
Real-time PM2.5, PM10 air pollution level in Longmont
Last Updated: 2026-08-17 15:41 (Local Time)
37 °C
Sunny
Presently, Longmont ranks for having the good air quality among cities worldwide.
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Historical Air Quality Data
Longmont
AQI (US) Trends - Annual Air Quality Changes
Longmont, Colorado, United States
Longmont's Locations
Real-time Air Pollution Level
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Air Quality Index
Air Quality Calendar 2026
Longmont
Health Advice For People Living In
Longmont
0Cigarettes per day
Breathe easy and get active! The air quality is perfect for enjoying outdoor activities.
Source:
Berkeley Earth
Solutions for Current AQI (US)
Prevent Health Problems: Understand Your Risks
Longmont
Asthma
Heart Issues
Allergies
Sinus
Cold/Flu
Chronic (COPD)
Most Polluted Cities 2026
United States
Analyze the real-time most air polluted cities in the country.
Standard Value
1.
Omak, Washington
Moderate
2xabove Standard
2.
Boise, Idaho
Moderate
2xabove Standard
3.
Moses Lake, Washington
Moderate
2xabove Standard
4.
Quincy, Washington
Moderate
2xabove Standard
5.
Chelan, Washington
Moderate
2xabove Standard
6.
Wenatchee, Washington
Moderate
2xabove Standard
7.
Davie, Florida
Moderate
1xabove Standard
8.
Ellensburg, Washington
Moderate
1xabove Standard
9.
Garden City, Idaho
Moderate
1xabove Standard
10.
Miami, Florida
Moderate
1xabove Standard
Last Updated: 17 Aug 2026, 09:46 PM
AQI City RankingsAir Quality Solutions For Longmont
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Air Quality FAQs
at Longmont
Frequently Asked Questions About Air Quality
1. What is the current AQI (US) level in Longmont?
1. What is the current AQI (US) level in Longmont?
The current real-time AQI (US) level in Longmont is 38 (Good). This was last updated 2026-08-17 15:41 (Local Time).
2. When was the best AQI (US) level in Longmont in the last 24 hours?
2. When was the best AQI (US) level in Longmont in the last 24 hours?
The best AQI (US) level was 8 (Good) at 2:01 AM (Local Time) during the last 24 hours.
3. When was the worst AQI (US) level in Longmont in the last 24 hours?
3. When was the worst AQI (US) level in Longmont in the last 24 hours?
The worst AQI (US) level was 60 (Moderate) at 1:01 PM (Local Time) during the last 24 hours.
4. What is the current trend of AQI (US) levels in Longmont during last 24 hours?
4. What is the current trend of AQI (US) levels in Longmont during last 24 hours?
The AQI (US) levels in Longmont have been fluctuating throughout the last 24 hours. The levels have increased by highest 60 at 1:01 PM (Local Time), lowest 8 at 2:01 AM (Local Time).
5. What actions are recommended as per the current AQI (US) level in Longmont?
5. What actions are recommended as per the current AQI (US) level in Longmont?
The air quality is satisfactory, and air pollution poses little or no risk. No special precautions are needed; enjoy outdoor activities freely.
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