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Air quality in Boulder County

Air quality index (AQI⁺) and PM2.5 air pollution in Boulder County • 169.1K Followers • 17:00, Oct 11 Local time

US AQI⁺

Good

Main pollutant:

PM2.5

4.5 µg/m³

14°

16 km/h

63 %

Hourly forecast

Boulder County air quality index (AQI⁺) forecast

Now

14°

km/h

63%

18:00

10%

16°

km/h

57%

19:00

16°

km/h

54%

20:00

15°

km/h

49%

21:00

15°

km/h

51%

22:00

14°

km/h

52%

23:00

13°

km/h

57%

Mon

00:00

12°

km/h

48%

01:00

11°

km/h

46%

02:00

11°

km/h

32%

03:00

10°

km/h

34%

04:00

9°

km/h

40%

05:00

9°

km/h

46%

06:00

8°

km/h

51%

07:00

8°

km/h

55%

08:00

8°

km/h

56%

09:00

10°

km/h

55%

10:00

12°

km/h

51%

11:00

13°

km/h

45%

12:00

15°

km/h

36%

13:00

17°

km/h

32%

14:00

17°

km/h

29%

15:00

18°

km/h

24%

16:00

18°

km/h

23%

17:00

17°

km/h

22%

18:00

16°

km/h

24%

19:00

14°

km/h

37%

20:00

14°

km/h

41%

21:00

13°

km/h

42%

22:00

13°

km/h

40%

23:00

10°

km/h

42%

Tue

00:00

8°

km/h

62%

01:00

7°

km/h

72%

02:00

7°

km/h

83%

03:00

6°

km/h

88%

04:00

5°

km/h

94%

05:00

4°

km/h

87%

06:00

3°

km/h

86%

07:00

3°

km/h

85%

08:00

3°

km/h

88%

09:00

4°

km/h

82%

10:00

5°

km/h

80%

11:00

6°

km/h

80%

12:00

6°

km/h

84%

13:00

6°

km/h

93%

14:00

6°

km/h

95%

15:00

70%

6°

km/h

96%

16:00

6°

km/h

96%

17:00

6°

km/h

96%

18:00

6°

km/h

94%

19:00

70%

8°

km/h

72%

20:00

7°

km/h

73%

21:00

7°

km/h

71%

22:00

7°

km/h

79%

23:00

6°

km/h

84%

Wed

00:00

6°

km/h

90%

01:00

80%

5°

km/h

94%

02:00

80%

5°

km/h

96%

03:00

4°

km/h

96%

04:00

4°

km/h

96%

05:00

4°

km/h

98%

06:00

4°

km/h

98%

07:00

4°

km/h

97%

08:00

70%

4°

km/h

99%

09:00

4°

km/h

99%

10:00

3°

km/h

99%

11:00

70%

3°

km/h

98%

12:00

3°

km/h

98%

13:00

70%

2°

km/h

98%

14:00

2°

km/h

95%

15:00

2°

km/h

96%

16:00

80%

1°

km/h

97%

Daily forecast

Boulder County air quality index (AQI⁺) forecast

Today

18°

11°

km/h

51%

Sun

18°

8°

km/h

39%

Mon

8°

3°

km/h

85%

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.

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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

Low

Tree

None

Grass

None

Weed

Low

25%

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

Low

Tree

None

Grass

None

Weed

Low

25%

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	Willis Heights	23
2	Snead Court	19
3	47th Street	17
4	Golden Eagle Lode	17
5	161 Swallow Ln	15
6	Walker Ranch, Pine Needle Notch	14
7	Eagle Court	13
8	818 Co Rd 116	6
9	Rabbit Mountain Equestrian Center	0
10	Rozena Drive	0

City ranking

Real-time USA AQI⁺ city ranking

#	Cities	AQI⁺ US
1	South Valley, New Mexico	119
2	Lancaster, Pennsylvania	106
3	Memphis, Tennessee	100
4	Rapid City, South Dakota	95
5	Shreveport, Louisiana	91
6	Evanston, Illinois	78
7	Muscatine, Iowa	77
8	Brawley, California	76
9	Coggon, Iowa	75
10	Maricopa County, Arizona	73

History

Historic air quality graph for Boulder County

25 AQI⁺ US

Good

16:00–17:00 Oct 11 Local time

AQI⁺ US

History

Historic air quality graph for Boulder County

25 AQI⁺ US

Good

16:00–17:00 Oct 11 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	Willis Heights	23
2	Snead Court	19
3	47th Street	17
4	Golden Eagle Lode	17
5	161 Swallow Ln	15
6	Walker Ranch, Pine Needle Notch	14
7	Eagle Court	13
8	818 Co Rd 116	6
9	Rabbit Mountain Equestrian Center	0
10	Rozena Drive	0

City ranking

Real-time USA AQI⁺ city ranking

#	Cities	AQI⁺ US
1	South Valley, New Mexico	119
2	Lancaster, Pennsylvania	106
3	Memphis, Tennessee	100
4	Rapid City, South Dakota	95
5	Shreveport, Louisiana	91
6	Evanston, Illinois	78
7	Muscatine, Iowa	77
8	Brawley, California	76
9	Coggon, Iowa	75
10	Maricopa County, Arizona	73