Air quality in Longmont

Air quality index (AQI) and PM2.5 air pollution in Longmont

LAST UPDATE (local time)

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Weather

What is the current weather in Longmont?

WeatherScattered clouds
Temperature59°C
Humidity42%
Wind3.4 mp/h
Pressure1021 mb

live aqi city ranking

Real-time USA city ranking

#cityUS AQI
1Mammoth Lakes

347

2Dixon Lane-Meadow Creek

332

3Bishop

289

4Lee Vining

263

5Inyo

209

6Union

183

7Johnstonville

171

8Medford

165

9Captain Cook

159

10Garden City

155

(local time)

SEE WORLD AQI RANKING

live Longmont aqi ranking

Real-time Longmont air quality ranking

#stationUS AQI
1Mallard Place

49

2Grant Drive

40

(local time)

SEE WORLD AQI RANKING

US AQI

40

live AQI index
Good

Overview

What is the current air quality in Longmont?

Air pollution levelAir quality indexMain pollutant
Good40 US AQItrendPM2.5
PollutantsConcentration
PM2.5
9.6 µg/m³trend

Health Recommendations

How to protect from air pollution in Longmont?

Open your windows to bring clean, fresh air indoors
Enjoy outdoor activities

Forecast

Longmont air quality index (AQI) forecast

DayPollution levelWeatherTemperatureWind
Sunday, Sep 20

Moderate76 US AQI

Monday, Sep 21

Moderate63 US AQI

Tuesday, Sep 22

Good48 US AQI

Today

Moderate63 US AQI

face icon
weather icon89.6°55.4°

4.5 mp/h

Thursday, Sep 24

Good39 US AQI

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weather icon89.6°60.8°

13.4 mp/h

Friday, Sep 25

Moderate52 US AQI

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weather icon87.8°57.2°

0 mp/h

Saturday, Sep 26

Good22 US AQI

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weather icon80.6°51.8°

4.5 mp/h

Sunday, Sep 27

Good19 US AQI

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weather icon87.8°50°

4.5 mp/h

Monday, Sep 28

Good17 US AQI

face icon
weather icon66.2°41°

4.5 mp/h

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Historical

Historic air quality graph for Longmont

How to best protect from air pollution?

Reduce your air pollution exposure in Longmont

Where is the cleanest air quality in Longmont?

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