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Air quality in Boulder County

Air quality index (AQI⁺) and PM2.5 air pollution in Boulder County • 168.3K Followers • 10:00, Sep 12 Local time

US AQI⁺

Good

Main pollutant:

PM2.5

4 µg/m³

14°

6 km/h

62 %

Hourly forecast

Boulder County air quality index (AQI⁺) forecast

Now

14°

km/h

62%

11:00

16°

km/h

58%

12:00

18°

km/h

53%

13:00

19°

km/h

51%

14:00

19°

km/h

51%

15:00

19°

km/h

51%

16:00

19°

km/h

50%

17:00

20°

km/h

47%

18:00

19°

km/h

50%

19:00

18°

km/h

54%

20:00

18°

km/h

55%

21:00

18°

km/h

44%

22:00

18°

km/h

37%

23:00

17°

km/h

39%

Sun

00:00

17°

km/h

43%

01:00

17°

km/h

46%

02:00

16°

km/h

49%

03:00

16°

km/h

49%

04:00

16°

km/h

48%

05:00

16°

km/h

47%

06:00

16°

km/h

47%

07:00

16°

km/h

50%

08:00

17°

km/h

52%

09:00

19°

km/h

49%

10:00

20°

km/h

43%

11:00

21°

km/h

41%

12:00

22°

km/h

40%

13:00

22°

km/h

40%

14:00

23°

km/h

35%

15:00

23°

km/h

34%

16:00

22°

km/h

41%

17:00

23°

km/h

39%

18:00

22°

km/h

36%

19:00

20°

km/h

43%

20:00

19°

km/h

50%

21:00

17°

km/h

69%

22:00

16°

km/h

79%

23:00

15°

km/h

83%

Mon

00:00

15°

km/h

81%

01:00

15°

km/h

66%

02:00

17°

km/h

47%

03:00

17°

km/h

37%

04:00

15°

km/h

61%

05:00

16°

km/h

56%

06:00

16°

km/h

57%

07:00

14°

km/h

56%

08:00

16°

km/h

49%

09:00

18°

km/h

45%

10:00

19°

km/h

42%

11:00

18°

km/h

46%

12:00

20°

km/h

36%

13:00

22°

km/h

32%

14:00

22°

km/h

31%

15:00

22°

km/h

29%

16:00

23°

km/h

22%

17:00

23°

km/h

21%

18:00

22°

km/h

24%

19:00

17°

km/h

39%

20:00

14°

km/h

54%

21:00

13°

km/h

57%

22:00

13°

km/h

54%

23:00

12°

km/h

54%

Tue

00:00

13°

km/h

50%

01:00

13°

km/h

50%

02:00

13°

km/h

50%

03:00

11°

km/h

52%

04:00

10°

km/h

54%

05:00

8°

km/h

58%

06:00

8°

km/h

60%

07:00

8°

km/h

60%

08:00

10°

km/h

46%

09:00

12°

km/h

42%

Daily forecast

Boulder County air quality index (AQI⁺) forecast

Today

20°

8°

km/h

58%

Sun

23°

16°

km/h

46%

Mon

23°

13°

km/h

41%

Air pollutants

What is the current air quality in Boulder County?

PM2.5 concentration currently meets the WHO annual PM2.5 guideline.

Real-time Boulder County air pollution map

Health recommendations

Enjoy outdoor activities

Open your windows to bring clean, fresh air indoors

Get a monitor

Protect yourself from air pollution in Boulder County

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Monitor the air you breathe

Get accurate AirVisual air quality readings and real-time insights for cleaner air. Monitors that reveal pollution sources, highlight when air purifier use is needed.

AirVisual Series

Medical grade air purifiers

Trusted worldwide, the HealthPro Series uses HyperHEPA technology. Filters ultrafine particles other air purifiers miss, delivering medical-grade protection.

HealthPro Series

Powerful, stylish air purifiers

Compact and powerful, the Atem Series combines Swiss engineering with high-performance air purification, filtering ultrafine particles with HyperHEPA technology.

Atem Series

Pollen

What is the pollen count in Boulder County today?

Index

High

Tree

None

Grass

None

Weed

High

75%

Source:

wetter.com

Pollen forecast in Boulder County

Health recommendations

Enjoy outdoor activities

Open your windows to bring clean, fresh air indoors

Get a monitor

Real-time Boulder County air pollution map

Pollen

What is the pollen count in Boulder County today?

Index

High

Tree

None

Grass

None

Weed

High

75%

Source:

wetter.com

Pollen forecast in Boulder County

Protect yourself from air pollution in Boulder County

SHOP IQAIR PRODUCTS

Monitor the air you breathe

Get accurate AirVisual air quality readings and real-time insights for cleaner air. Monitors that reveal pollution sources, highlight when air purifier use is needed.

AirVisual Series

Medical grade air purifiers

Trusted worldwide, the HealthPro Series uses HyperHEPA technology. Filters ultrafine particles other air purifiers miss, delivering medical-grade protection.

HealthPro Series

Powerful, stylish air purifiers

Compact and powerful, the Atem Series combines Swiss engineering with high-performance air purification, filtering ultrafine particles with HyperHEPA technology.

Atem Series

Most polluted locations near Boulder County

Worldwide AQI⁺ ranking

Station ranking

Real-time AQI⁺ station ranking for stations in Boulder County

#	Stations	AQI⁺ US
1	Rozena Drive	44
2	161 Swallow Ln	21
3	Walker Ranch, Pine Needle Notch	19
4	Golden Eagle Lode	17
5	Rabbit Mountain Equestrian Center	17
6	47th Street	13
7	818 Co Rd 116	11
8	Eagle Court	9
9	Marshall	1
10	Parkdale Area	1

City ranking

Real-time USA AQI⁺ city ranking

#	Cities	AQI⁺ US
1	Rapid City, South Dakota	126
2	Chelan County, Washington	106
3	Ontario, California	82
4	Leavenworth, Washington	80
5	San Fernando, California	73
6	Susanville, California	72
7	Aliso Viejo, California	69
8	Palo Cedro, California	68
9	Glendora, California	67
10	Douglas, Washington	66

History

Historic air quality graph for Boulder County

22 AQI⁺ US

Good

09:00–10:00 Sep 12 Local time

AQI⁺ US

History

Historic air quality graph for Boulder County

22 AQI⁺ US

Good

09:00–10:00 Sep 12 Local time

AQI⁺ US

Most polluted locations near Boulder County

Worldwide AQI⁺ ranking

Station ranking

Real-time AQI⁺ station ranking for stations in Boulder County

#	Stations	AQI⁺ US
1	Rozena Drive	44
2	161 Swallow Ln	21
3	Walker Ranch, Pine Needle Notch	19
4	Golden Eagle Lode	17
5	Rabbit Mountain Equestrian Center	17
6	47th Street	13
7	818 Co Rd 116	11
8	Eagle Court	9
9	Marshall	1
10	Parkdale Area	1

City ranking

Real-time USA AQI⁺ city ranking

#	Cities	AQI⁺ US
1	Rapid City, South Dakota	126
2	Chelan County, Washington	106
3	Ontario, California	82
4	Leavenworth, Washington	80
5	San Fernando, California	73
6	Susanville, California	72
7	Aliso Viejo, California	69
8	Palo Cedro, California	68
9	Glendora, California	67
10	Douglas, Washington	66