Air quality in Boulder

Air quality index (AQI⁺) and PM2.5 air pollution in Boulder • 437 Followers • 12:00, Apr 24 Local time

28

US AQI⁺

Good

face expression based on aqi value

Main pollutant:

PM2.5

5.1 µg/m³

weather condition icon

3°

wind direction icon

4 km/h

weather humid icon

24 %

Hourly forecast

Boulder air quality index (AQI⁺) forecast

Now

28

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 252 degree

4

km/h

Humidity icon

24%

13:00

26

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 283 degree

15

km/h

Humidity icon

22%

14:00

24

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 288 degree

19

km/h

Humidity icon

23%

15:00

23

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 309 degree

22

km/h

Humidity icon

25%

16:00

21

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 314 degree

23

km/h

Humidity icon

27%

17:00

19

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 311 degree

19

km/h

Humidity icon

34%

18:00

18

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 314 degree

18

km/h

Humidity icon

33%

19:00

16

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 328 degree

23

km/h

Humidity icon

39%

20:00

14

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 342 degree

13

km/h

Humidity icon

42%

21:00

12

Weather icon

-1°

IQAir AirVisual Air Quality Map Wind rotating 0 degree

11

km/h

Humidity icon

42%

22:00

11

Weather icon

-2°

IQAir AirVisual Air Quality Map Wind rotating 21 degree

8

km/h

Humidity icon

82%

23:00

9

Weather icon

-3°

IQAir AirVisual Air Quality Map Wind rotating 22 degree

5

km/h

Humidity icon

95%

Sat

00:00

9

Weather icon

-2°

IQAir AirVisual Air Quality Map Wind rotating 74 degree

1

km/h

Humidity icon

90%

01:00

9

Weather icon

-3°

IQAir AirVisual Air Quality Map Wind rotating 99 degree

2

km/h

Humidity icon

99%

02:00

9

Weather icon

-3°

IQAir AirVisual Air Quality Map Wind rotating 110 degree

3

km/h

Humidity icon

98%

03:00

11

Weather icon

-3°

IQAir AirVisual Air Quality Map Wind rotating 104 degree

2

km/h

Humidity icon

97%

04:00

11

Weather icon

-3°

IQAir AirVisual Air Quality Map Wind rotating 42 degree

8

km/h

Humidity icon

93%

05:00

11

Weather icon

-3°

IQAir AirVisual Air Quality Map Wind rotating 26 degree

17

km/h

Humidity icon

84%

06:00

13

Weather icon

-4°

IQAir AirVisual Air Quality Map Wind rotating 22 degree

17

km/h

Humidity icon

88%

07:00

13

Weather icon

-4°

IQAir AirVisual Air Quality Map Wind rotating 24 degree

14

km/h

Humidity icon

77%

08:00

13

Weather icon

-3°

IQAir AirVisual Air Quality Map Wind rotating 28 degree

15

km/h

Humidity icon

63%

09:00

7

Weather icon

-2°

IQAir AirVisual Air Quality Map Wind rotating 30 degree

14

km/h

Humidity icon

57%

10:00

7

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 46 degree

8

km/h

Humidity icon

51%

11:00

7

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 75 degree

6

km/h

Humidity icon

47%

12:00

11

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 82 degree

5

km/h

Humidity icon

44%

13:00

11

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 86 degree

6

km/h

Humidity icon

44%

14:00

11

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 120 degree

5

km/h

Humidity icon

46%

15:00

8

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 130 degree

5

km/h

Humidity icon

48%

16:00

8

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 89 degree

3

km/h

Humidity icon

52%

17:00

8

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 54 degree

10

km/h

Humidity icon

52%

18:00

8

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 36 degree

15

km/h

Humidity icon

65%

19:00

8

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 25 degree

14

km/h

Humidity icon

70%

20:00

8

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 16 degree

13

km/h

Humidity icon

73%

21:00

12

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 9 degree

16

km/h

Humidity icon

78%

22:00

12

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 15 degree

17

km/h

Humidity icon

81%

23:00

12

Weather icon

-1°

IQAir AirVisual Air Quality Map Wind rotating 8 degree

15

km/h

Humidity icon

76%

Sun

00:00

13

Weather icon

-1°

IQAir AirVisual Air Quality Map Wind rotating 6 degree

14

km/h

Humidity icon

78%

01:00

13

Weather icon

-1°

IQAir AirVisual Air Quality Map Wind rotating 6 degree

15

km/h

Humidity icon

76%

02:00

13

Weather icon

-1°

IQAir AirVisual Air Quality Map Wind rotating 10 degree

15

km/h

Humidity icon

78%

03:00

13

Weather icon

-2°

IQAir AirVisual Air Quality Map Wind rotating 11 degree

17

km/h

Humidity icon

79%

04:00

13

Weather icon

-2°

IQAir AirVisual Air Quality Map Wind rotating 12 degree

17

km/h

Humidity icon

78%

05:00

13

Weather icon

-2°

IQAir AirVisual Air Quality Map Wind rotating 14 degree

19

km/h

Humidity icon

78%

06:00

9

Weather icon

-3°

IQAir AirVisual Air Quality Map Wind rotating 16 degree

19

km/h

Humidity icon

77%

07:00

9

Weather icon

-3°

IQAir AirVisual Air Quality Map Wind rotating 18 degree

19

km/h

Humidity icon

78%

08:00

9

Weather icon

-3°

IQAir AirVisual Air Quality Map Wind rotating 19 degree

18

km/h

Humidity icon

76%

09:00

8

Weather icon

-2°

IQAir AirVisual Air Quality Map Wind rotating 18 degree

18

km/h

Humidity icon

74%

10:00

8

Weather icon

-2°

IQAir AirVisual Air Quality Map Wind rotating 20 degree

20

km/h

Humidity icon

71%

11:00

8

Weather icon

-1°

IQAir AirVisual Air Quality Map Wind rotating 19 degree

23

km/h

Humidity icon

62%

12:00

8

Weather icon

-1°

IQAir AirVisual Air Quality Map Wind rotating 18 degree

25

km/h

Humidity icon

67%

13:00

8

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 18 degree

27

km/h

Humidity icon

59%

14:00

8

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 18 degree

28

km/h

Humidity icon

60%

15:00

8

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 17 degree

29

km/h

Humidity icon

59%

16:00

8

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 17 degree

30

km/h

Humidity icon

60%

17:00

8

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 15 degree

30

km/h

Humidity icon

62%

18:00

8

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 14 degree

28

km/h

Humidity icon

66%

19:00

8

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 45 degree

19

km/h

Humidity icon

69%

20:00

8

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 30 degree

17

km/h

Humidity icon

79%

21:00

7

Weather icon

-1°

IQAir AirVisual Air Quality Map Wind rotating 17 degree

15

km/h

Humidity icon

85%

22:00

7

Weather icon

-2°

IQAir AirVisual Air Quality Map Wind rotating 358 degree

11

km/h

Humidity icon

84%

23:00

7

Weather icon

-3°

IQAir AirVisual Air Quality Map Wind rotating 357 degree

8

km/h

Humidity icon

82%

Mon

00:00

6

Weather icon

-4°

IQAir AirVisual Air Quality Map Wind rotating 8 degree

6

km/h

Humidity icon

80%

01:00

6

Weather icon

-4°

IQAir AirVisual Air Quality Map Wind rotating 20 degree

5

km/h

Humidity icon

80%

02:00

6

Weather icon

-4°

IQAir AirVisual Air Quality Map Wind rotating 51 degree

3

km/h

Humidity icon

81%

03:00

6

Weather icon

-4°

IQAir AirVisual Air Quality Map Wind rotating 85 degree

2

km/h

Humidity icon

82%

04:00

6

Weather icon

-4°

IQAir AirVisual Air Quality Map Wind rotating 60 degree

3

km/h

Humidity icon

84%

05:00

6

Weather icon

-4°

IQAir AirVisual Air Quality Map Wind rotating 79 degree

2

km/h

Humidity icon

85%

06:00

6

Weather icon

-4°

IQAir AirVisual Air Quality Map Wind rotating 105 degree

2

km/h

Humidity icon

87%

07:00

6

Weather icon

-3°

IQAir AirVisual Air Quality Map Wind rotating 92 degree

3

km/h

Humidity icon

84%

08:00

6

Weather icon

-2°

IQAir AirVisual Air Quality Map Wind rotating 93 degree

5

km/h

Humidity icon

78%

09:00

6

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 119 degree

7

km/h

Humidity icon

73%

10:00

6

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 134 degree

8

km/h

Humidity icon

70%

11:00

6

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 151 degree

7

km/h

Humidity icon

66%

Daily forecast

|

Boulder air quality index (AQI⁺) forecast

Today

24

Weather icon

-6°

IQAir AirVisual Air Quality Map Wind rotating 0 degree

25

km/h

Humidity icon

44%

Sat

10

Weather icon

-4°

IQAir AirVisual Air Quality Map Wind rotating 45 degree

17

km/h

Humidity icon

61%

Sun

10

Weather icon

-3°

IQAir AirVisual Air Quality Map Wind rotating 0 degree

30

km/h

Humidity icon

70%

Air pollutants

What is the current air quality in Boulder?

IQAir Check icon

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

Health recommendations

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Enjoy outdoor activities

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Open your windows to bring clean, fresh air indoors

Get a monitor

Protect yourself from air pollution in Boulder

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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.

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Pollen

What is the pollen count in Boulder today?

Index

Pollen global icon

Low

Pollen tree icon

Tree

Low

25%
Pollen grass icon

Grass

None

0%
Pollen weed icon

Weed

None

0%

Source:

wetter.com
Pollen forecast in Boulder

Health recommendations

common.healthRecommendationComp.icons.exerciseAlt

Enjoy outdoor activities

common.healthRecommendationComp.icons.windowAlt

Open your windows to bring clean, fresh air indoors

Get a monitor

Pollen

What is the pollen count in Boulder today?

Index

Pollen global icon

Low

Pollen tree icon

Tree

Low

25%
Pollen grass icon

Grass

None

0%
Pollen weed icon

Weed

None

0%

Source:

wetter.com
Pollen forecast in Boulder

Protect yourself from air pollution in Boulder

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

Worldwide AQI⁺ rankingArrow icon

Station ranking

Real-time AQI⁺ station ranking for stations in Boulder

#StationsAQI⁺ US
1
The national flag of USA

100-198 E 4th Ave

28

City ranking

Real-time USA AQI⁺ city ranking

#CitiesAQI⁺ US
1
The national flag of USA

Mission, Texas

92

2
The national flag of USA

Port Arthur, Texas

82

3
The national flag of USA

Middletown, Ohio

72

4
The national flag of USA

Dayton, Ohio

70

5
The national flag of USA

San Antonio, Texas

69

6
The national flag of USA

Briarcliff, Texas

68

7
The national flag of USA

Columbia, South Carolina

68

8
The national flag of USA

Pflugerville, Texas

68

9
The national flag of USA

West Lake Hills, Texas

68

10
The national flag of USA

Wynnedale, Indiana

68

History

Historic air quality graph for Boulder

28 AQI⁺ US
Good
11:00–12:00 Apr 24 Local time
AQI⁺ US

History

Historic air quality graph for Boulder

28 AQI⁺ US
Good
11:00–12:00 Apr 24 Local time
AQI⁺ US

Most polluted locations near Boulder

Worldwide AQI⁺ rankingArrow icon

Station ranking

Real-time AQI⁺ station ranking for stations in Boulder

#StationsAQI⁺ US
1
The national flag of USA

100-198 E 4th Ave

28

City ranking

Real-time USA AQI⁺ city ranking

#CitiesAQI⁺ US
1
The national flag of USA

Mission, Texas

92

2
The national flag of USA

Port Arthur, Texas

82

3
The national flag of USA

Middletown, Ohio

72

4
The national flag of USA

Dayton, Ohio

70

5
The national flag of USA

San Antonio, Texas

69

6
The national flag of USA

Briarcliff, Texas

68

7
The national flag of USA

Columbia, South Carolina

68

8
The national flag of USA

Pflugerville, Texas

68

9
The national flag of USA

West Lake Hills, Texas

68

10
The national flag of USA

Wynnedale, Indiana

68

Measure your own air quality

Get a monitor and contribute air quality data in your city.

Where is the cleanest air quality in Boulder?