AQI

Larimer Air Quality Index & Realtime Air Pollution

Live AQI
65(AQI-US)
Air Quality is
Moderate
PM2.5 :3.4µg/m³
PM10 :6µg/m³
Good
Moderate
Poor
Unhealthy
Severe
Hazardous
050100150200300301+
Moderate air quality mascot

Primary Air Pollutants Larimer (Colorado)

PM2.53µg/m³
PM2.5
Fine particles
PM106µg/m³
PM10
Coarse particles
SO₂0µg/m³
SO₂
Sulphur dioxide
CO113µg/m³
CO
Carbon monoxide
NO₂0µg/m³
NO₂
Nitrogen dioxide
O₃113µg/m³
O₃
Ozone

Hourly forecast Larimer (Colorado)

Now21°
Overcast
19:0021°
Overcast
20:0019°
Overcast
21:0016°
Mostly clear
22:0014°
Partly cloudy
23:0013°
Clear sky
00:0014°
Clear sky
01:0014°
Clear sky
02:0014°
Clear sky
03:0014°
Clear sky
04:0014°
Clear sky
05:0014°
Clear sky
06:0014°
Overcast
07:0017°
Mostly clear
08:0020°
Clear sky
09:0022°
Clear sky
10:0025°
Mostly clear
11:0025°
Overcast
12:0025°
Overcast
13:0025°
Overcast
14:0028°
Clear sky
15:0026°
Overcast
16:0027°
Overcast
17:0027°
Overcast

Health Recommendations for Larimer Residents

Based on current air quality: Moderate · AQI 65

Moderate
Air Purifier
Air PurifierTurn On
Car Filter
Car FilterMust
N95 Mask
N95 MaskMust
Stay Indoor
Stay IndoorMust

UV Index

1.3

Low

Safe to be outside. Minimal UV risk.

Wind

15.9 km/h

Moderate wind — noticeable and steady.

AQI Graph

Historical AQI Data Larimer (Colorado)

27
Min. AQIat 8:00 AM on 3rd Jun
65
Max. AQIat 6:00 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 Larimer

0.2
Cigarettes
per day
Weekly1.4 Cigarettes
Monthly6 Cigarettes

Breathing the air in this location is equivalent to smoking 0.2 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 Larimer Current AQI (US)
Air Purifier
Air PurifierTurn On
Car Filter
Car FilterMust
N95 Mask
N95 MaskMust
Stay Indoor
Stay IndoorMust
Must turn on the air purifier to enjoy fresh air.Get an Air Purifier

Prevent Health Problems: Understand Your Risks

Larimer · Current air quality: Moderate · AQI 65

Mild Trigger Risk

Headaches

Risk of Headaches symptoms is Mild when AQI of Larimer is Moderate (51-100).

Common signs

Common effects can include: Pressure or tightness around the forehead and temples, Sensitivity to light or smell, Fatigue or difficulty concentrating.

Do’s :
  • Opt for indoor, air with filtration when the AQI is poor.
  • Increase fluids and rest from digital screens or intense light if you are migraine-prone.
  • If you Use prescribed migraine meds, Keep them accessible.
Don’ts :
  • Don’t do intense outdoor exercise during elevated AQI periods.
  • Do not ignore worsening signs 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.

Larimer's Nearby Cities AQI

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10.Mesa
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Population: -
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Air Quality FAQs at Larimer, Colorado

The current real-time AQI (US) level in Larimer, Colorado is 65 (Moderate). 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 Larimer, Colorado have been fluctuating throughout the last 24 hours depending on traffic and weather conditions.

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