Air quality in Boulder

Air quality index (AQI⁺) and PM2.5 air pollution in Boulder • 437 Followers • 21:00, May 23 Local time

28

US AQI⁺

Good

face expression based on aqi value

Main pollutant:

PM2.5

5.2 µg/m³

weather condition icon

16°

wind direction icon

5 km/h

weather humid icon

40 %

Hourly forecast

Boulder air quality index (AQI⁺) forecast

Now

28

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 278 degree

5

km/h

Humidity icon

40%

22:00

30

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 295 degree

6

km/h

Humidity icon

42%

23:00

33

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 307 degree

8

km/h

Humidity icon

44%

Sun

00:00

36

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 309 degree

8

km/h

Humidity icon

46%

01:00

38

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 306 degree

6

km/h

Humidity icon

45%

02:00

41

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 302 degree

5

km/h

Humidity icon

44%

03:00

30

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 295 degree

6

km/h

Humidity icon

45%

04:00

30

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 297 degree

7

km/h

Humidity icon

48%

05:00

31

Weather icon

10°

IQAir AirVisual Air Quality Map Wind rotating 300 degree

7

km/h

Humidity icon

51%

06:00

21

Weather icon

10°

IQAir AirVisual Air Quality Map Wind rotating 303 degree

8

km/h

Humidity icon

54%

07:00

20

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 298 degree

8

km/h

Humidity icon

57%

08:00

19

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 269 degree

6

km/h

Humidity icon

51%

09:00

17

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 238 degree

5

km/h

Humidity icon

46%

10:00

17

Weather icon

18°

IQAir AirVisual Air Quality Map Wind rotating 255 degree

9

km/h

Humidity icon

44%

11:00

17

Weather icon

19°

IQAir AirVisual Air Quality Map Wind rotating 245 degree

12

km/h

Humidity icon

40%

12:00

56

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 252 degree

16

km/h

Humidity icon

32%

13:00

56

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 247 degree

14

km/h

Humidity icon

29%

14:00

56

Weather icon

23°

IQAir AirVisual Air Quality Map Wind rotating 250 degree

14

km/h

Humidity icon

27%

15:00

60

Weather icon

24°

IQAir AirVisual Air Quality Map Wind rotating 261 degree

14

km/h

Humidity icon

25%

16:00

60

Weather icon

24°

IQAir AirVisual Air Quality Map Wind rotating 271 degree

15

km/h

Humidity icon

24%

17:00

60

Weather icon

24°

IQAir AirVisual Air Quality Map Wind rotating 278 degree

16

km/h

Humidity icon

22%

18:00

61

Weather icon

24°

IQAir AirVisual Air Quality Map Wind rotating 285 degree

15

km/h

Humidity icon

23%

19:00

61

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 291 degree

13

km/h

Humidity icon

26%

20:00

61

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 309 degree

10

km/h

Humidity icon

31%

21:00

61

Weather icon

18°

IQAir AirVisual Air Quality Map Wind rotating 319 degree

12

km/h

Humidity icon

36%

22:00

61

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 323 degree

10

km/h

Humidity icon

35%

23:00

61

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 325 degree

8

km/h

Humidity icon

39%

Mon

00:00

59

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 315 degree

8

km/h

Humidity icon

37%

01:00

59

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 304 degree

8

km/h

Humidity icon

32%

02:00

59

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 306 degree

7

km/h

Humidity icon

34%

03:00

59

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 311 degree

7

km/h

Humidity icon

36%

04:00

59

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 311 degree

7

km/h

Humidity icon

38%

05:00

59

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 313 degree

6

km/h

Humidity icon

41%

06:00

61

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 305 degree

6

km/h

Humidity icon

44%

07:00

61

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 315 degree

4

km/h

Humidity icon

46%

08:00

61

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 264 degree

1

km/h

Humidity icon

43%

09:00

62

Weather icon

18°

IQAir AirVisual Air Quality Map Wind rotating 162 degree

5

km/h

Humidity icon

38%

10:00

62

Weather icon

20°

IQAir AirVisual Air Quality Map Wind rotating 154 degree

10

km/h

Humidity icon

35%

11:00

62

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 153 degree

13

km/h

Humidity icon

31%

12:00

63

Weather icon

24°

IQAir AirVisual Air Quality Map Wind rotating 157 degree

13

km/h

Humidity icon

26%

13:00

63

Weather icon

25°

IQAir AirVisual Air Quality Map Wind rotating 158 degree

14

km/h

Humidity icon

22%

14:00

63

Weather icon

25°

IQAir AirVisual Air Quality Map Wind rotating 158 degree

15

km/h

Humidity icon

24%

15:00

62

Weather icon

25°

IQAir AirVisual Air Quality Map Wind rotating 165 degree

13

km/h

Humidity icon

24%

16:00

62

Weather icon

26°

IQAir AirVisual Air Quality Map Wind rotating 166 degree

12

km/h

Humidity icon

21%

17:00

62

Weather icon

20°

IQAir AirVisual Air Quality Map Wind rotating 166 degree

21

km/h

Humidity icon

44%

18:00

60

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 207 degree

15

km/h

Humidity icon

41%

19:00

60

Weather icon

18°

IQAir AirVisual Air Quality Map Wind rotating 265 degree

10

km/h

Humidity icon

29%

20:00

60

Weather icon

17°

IQAir AirVisual Air Quality Map Wind rotating 314 degree

16

km/h

Humidity icon

47%

21:00

58

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 315 degree

12

km/h

Humidity icon

49%

22:00

58

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 282 degree

9

km/h

Humidity icon

49%

23:00

58

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 360 degree

14

km/h

Humidity icon

58%

Tue

00:00

57

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 266 degree

3

km/h

Humidity icon

61%

01:00

57

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 289 degree

8

km/h

Humidity icon

58%

02:00

57

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 306 degree

7

km/h

Humidity icon

61%

03:00

24

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 299 degree

6

km/h

Humidity icon

63%

04:00

24

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 302 degree

7

km/h

Humidity icon

63%

05:00

24

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 272 degree

6

km/h

Humidity icon

66%

06:00

18

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 20 degree

3

km/h

Humidity icon

69%

07:00

18

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 90 degree

0

km/h

Humidity icon

64%

08:00

18

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 94 degree

3

km/h

Humidity icon

54%

09:00

21

Weather icon

19°

IQAir AirVisual Air Quality Map Wind rotating 137 degree

6

km/h

Humidity icon

51%

10:00

21

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 130 degree

4

km/h

Humidity icon

46%

11:00

21

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 129 degree

9

km/h

Humidity icon

43%

12:00

18

Weather icon

23°

IQAir AirVisual Air Quality Map Wind rotating 114 degree

7

km/h

Humidity icon

40%

13:00

18

Weather icon

23°

IQAir AirVisual Air Quality Map Wind rotating 116 degree

4

km/h

Humidity icon

35%

14:00

18

Weather icon

25°

IQAir AirVisual Air Quality Map Wind rotating 108 degree

6

km/h

Humidity icon

29%

15:00

21

Weather icon

25°

IQAir AirVisual Air Quality Map Wind rotating 130 degree

17

km/h

Humidity icon

24%

16:00

21

Weather icon

26°

IQAir AirVisual Air Quality Map Wind rotating 123 degree

16

km/h

Humidity icon

24%

17:00

21

Weather icon

90%

18°

IQAir AirVisual Air Quality Map Wind rotating 212 degree

43

km/h

Humidity icon

79%

18:00

55

Weather icon

90%

14°

IQAir AirVisual Air Quality Map Wind rotating 272 degree

20

km/h

Humidity icon

79%

19:00

55

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 273 degree

10

km/h

Humidity icon

75%

20:00

55

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 16 degree

7

km/h

Humidity icon

75%

Daily forecast

|

Boulder air quality index (AQI⁺) forecast

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

Protect yourself from air pollution in Boulder

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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

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Atem Series

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

Low

25%

Source:

wetter.com
Pollen forecast in Boulder

Health recommendations

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

Low

25%

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

Mecklenburg, North Carolina

79

2
The national flag of USA

Pahrump, Nevada

69

3
The national flag of USA

Spencer County, Indiana

69

4
The national flag of USA

Crestline, California

67

5
The national flag of USA

Fort Worth, Texas

67

6
The national flag of USA

Sioux Falls, South Dakota

65

7
The national flag of USA

Santa Clarita, California

64

8
The national flag of USA

Tulare County, California

64

9
The national flag of USA

Hesperia, California

63

10
The national flag of USA

Lancaster, California

63

History

Historic air quality graph for Boulder

28 AQI⁺ US
Good
20:00–21:00 May 23 Local time
AQI⁺ US

History

Historic air quality graph for Boulder

28 AQI⁺ US
Good
20:00–21:00 May 23 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

Mecklenburg, North Carolina

79

2
The national flag of USA

Pahrump, Nevada

69

3
The national flag of USA

Spencer County, Indiana

69

4
The national flag of USA

Crestline, California

67

5
The national flag of USA

Fort Worth, Texas

67

6
The national flag of USA

Sioux Falls, South Dakota

65

7
The national flag of USA

Santa Clarita, California

64

8
The national flag of USA

Tulare County, California

64

9
The national flag of USA

Hesperia, California

63

10
The national flag of USA

Lancaster, California

63

Measure your own air quality

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

Where is the cleanest air quality in Boulder?