Air quality in Boulder

Air quality index (AQI⁺) and PM2.5 air pollution in Boulder • 437 Followers • 15:00, Apr 19 Local time

31

US AQI⁺

Good

face expression based on aqi value

Main pollutant:

PM2.5

5.5 µg/m³

weather condition icon

16°

wind direction icon

8 km/h

weather humid icon

25 %

Hourly forecast

Boulder air quality index (AQI⁺) forecast

Now

31

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 153 degree

8

km/h

Humidity icon

25%

16:00

30

Weather icon

17°

IQAir AirVisual Air Quality Map Wind rotating 151 degree

8

km/h

Humidity icon

24%

17:00

29

Weather icon

17°

IQAir AirVisual Air Quality Map Wind rotating 151 degree

5

km/h

Humidity icon

24%

18:00

27

Weather icon

17°

IQAir AirVisual Air Quality Map Wind rotating 139 degree

5

km/h

Humidity icon

24%

19:00

26

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 123 degree

3

km/h

Humidity icon

27%

20:00

24

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 45 degree

2

km/h

Humidity icon

32%

21:00

24

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 332 degree

5

km/h

Humidity icon

35%

22:00

23

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 316 degree

5

km/h

Humidity icon

33%

23:00

22

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 301 degree

5

km/h

Humidity icon

36%

Mon

00:00

23

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 298 degree

5

km/h

Humidity icon

37%

01:00

22

Weather icon

10°

IQAir AirVisual Air Quality Map Wind rotating 305 degree

7

km/h

Humidity icon

41%

02:00

21

Weather icon

10°

IQAir AirVisual Air Quality Map Wind rotating 305 degree

8

km/h

Humidity icon

45%

03:00

24

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 307 degree

8

km/h

Humidity icon

46%

04:00

24

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 304 degree

9

km/h

Humidity icon

46%

05:00

24

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 305 degree

9

km/h

Humidity icon

46%

06:00

26

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 306 degree

8

km/h

Humidity icon

46%

07:00

26

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 307 degree

8

km/h

Humidity icon

44%

08:00

26

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 305 degree

7

km/h

Humidity icon

47%

09:00

24

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 280 degree

3

km/h

Humidity icon

42%

10:00

24

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 197 degree

3

km/h

Humidity icon

35%

11:00

24

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 155 degree

5

km/h

Humidity icon

32%

12:00

18

Weather icon

18°

IQAir AirVisual Air Quality Map Wind rotating 148 degree

6

km/h

Humidity icon

31%

13:00

18

Weather icon

19°

IQAir AirVisual Air Quality Map Wind rotating 147 degree

6

km/h

Humidity icon

27%

14:00

18

Weather icon

20°

IQAir AirVisual Air Quality Map Wind rotating 146 degree

7

km/h

Humidity icon

25%

15:00

17

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 150 degree

8

km/h

Humidity icon

22%

16:00

17

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 147 degree

5

km/h

Humidity icon

21%

17:00

17

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 124 degree

2

km/h

Humidity icon

20%

18:00

14

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 97 degree

1

km/h

Humidity icon

21%

19:00

14

Weather icon

20°

IQAir AirVisual Air Quality Map Wind rotating 8 degree

1

km/h

Humidity icon

25%

20:00

14

Weather icon

18°

IQAir AirVisual Air Quality Map Wind rotating 329 degree

4

km/h

Humidity icon

28%

21:00

15

Weather icon

17°

IQAir AirVisual Air Quality Map Wind rotating 315 degree

8

km/h

Humidity icon

27%

22:00

15

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 303 degree

7

km/h

Humidity icon

25%

23:00

15

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 292 degree

7

km/h

Humidity icon

28%

Tue

00:00

17

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 298 degree

7

km/h

Humidity icon

30%

01:00

17

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 305 degree

8

km/h

Humidity icon

30%

02:00

17

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 306 degree

9

km/h

Humidity icon

30%

03:00

18

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 310 degree

7

km/h

Humidity icon

30%

04:00

18

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 313 degree

6

km/h

Humidity icon

32%

05:00

18

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 321 degree

5

km/h

Humidity icon

32%

06:00

21

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 327 degree

4

km/h

Humidity icon

32%

07:00

21

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 325 degree

4

km/h

Humidity icon

34%

08:00

21

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 301 degree

2

km/h

Humidity icon

37%

09:00

28

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 224 degree

2

km/h

Humidity icon

32%

10:00

28

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 178 degree

4

km/h

Humidity icon

31%

11:00

28

Weather icon

18°

IQAir AirVisual Air Quality Map Wind rotating 155 degree

9

km/h

Humidity icon

30%

12:00

22

Weather icon

20°

IQAir AirVisual Air Quality Map Wind rotating 158 degree

15

km/h

Humidity icon

26%

13:00

22

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 171 degree

22

km/h

Humidity icon

24%

14:00

22

Weather icon

23°

IQAir AirVisual Air Quality Map Wind rotating 171 degree

21

km/h

Humidity icon

20%

15:00

20

Weather icon

24°

IQAir AirVisual Air Quality Map Wind rotating 173 degree

23

km/h

Humidity icon

17%

16:00

20

Weather icon

23°

IQAir AirVisual Air Quality Map Wind rotating 174 degree

26

km/h

Humidity icon

20%

17:00

20

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 173 degree

29

km/h

Humidity icon

20%

18:00

17

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 176 degree

25

km/h

Humidity icon

22%

19:00

17

Weather icon

19°

IQAir AirVisual Air Quality Map Wind rotating 202 degree

16

km/h

Humidity icon

28%

20:00

17

Weather icon

17°

IQAir AirVisual Air Quality Map Wind rotating 175 degree

12

km/h

Humidity icon

33%

21:00

21

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 166 degree

13

km/h

Humidity icon

32%

22:00

21

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 167 degree

13

km/h

Humidity icon

34%

23:00

21

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 161 degree

10

km/h

Humidity icon

36%

Wed

00:00

22

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 148 degree

5

km/h

Humidity icon

45%

01:00

22

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 220 degree

3

km/h

Humidity icon

47%

02:00

22

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 161 degree

1

km/h

Humidity icon

48%

03:00

23

Weather icon

10°

IQAir AirVisual Air Quality Map Wind rotating 94 degree

4

km/h

Humidity icon

50%

04:00

23

Weather icon

10°

IQAir AirVisual Air Quality Map Wind rotating 18 degree

2

km/h

Humidity icon

54%

05:00

23

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 347 degree

2

km/h

Humidity icon

54%

06:00

25

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 34 degree

1

km/h

Humidity icon

54%

07:00

25

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 72 degree

3

km/h

Humidity icon

55%

08:00

25

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 92 degree

4

km/h

Humidity icon

46%

09:00

24

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 166 degree

19

km/h

Humidity icon

35%

10:00

24

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 174 degree

32

km/h

Humidity icon

30%

11:00

24

Weather icon

17°

IQAir AirVisual Air Quality Map Wind rotating 158 degree

42

km/h

Humidity icon

24%

12:00

25

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 167 degree

44

km/h

Humidity icon

24%

13:00

25

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 168 degree

48

km/h

Humidity icon

35%

14:00

25

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 176 degree

38

km/h

Humidity icon

35%

Daily forecast

|

Boulder air quality index (AQI⁺) forecast

Today

30

Weather icon

17°

IQAir AirVisual Air Quality Map Wind rotating 135 degree

10

km/h

Humidity icon

33%

Mon

21

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 135 degree

8

km/h

Humidity icon

30%

Tue

20

Weather icon

24°

11°

IQAir AirVisual Air Quality Map Wind rotating 180 degree

29

km/h

Humidity icon

28%

Air pollutants

What is the current air quality in Boulder?

IQAir exclamation icon

PM2.5 concentration is currently 1.1 times the World Health Organization annual PM2.5 guideline value.

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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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 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

31

City ranking

Real-time USA AQI⁺ city ranking

#CitiesAQI⁺ US
1
The national flag of USA

Casa Grande, Arizona

102

2
The national flag of USA

Surprise, Arizona

86

3
The national flag of USA

Mesa, Arizona

73

4
The national flag of USA

Phoenix, Arizona

69

5
The national flag of USA

Pahala, Hawaii

66

6
The national flag of USA

Avenal, California

65

7
The national flag of USA

Gilbert, Arizona

64

8
The national flag of USA

Scottsdale, Arizona

61

9
The national flag of USA

Topeka, Kansas

60

10
The national flag of USA

Lancaster, California

59

History

Historic air quality graph for Boulder

31 AQI⁺ US
Good
14:00–15:00 Apr 19 Local time
AQI⁺ US

History

Historic air quality graph for Boulder

31 AQI⁺ US
Good
14:00–15:00 Apr 19 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

31

City ranking

Real-time USA AQI⁺ city ranking

#CitiesAQI⁺ US
1
The national flag of USA

Casa Grande, Arizona

102

2
The national flag of USA

Surprise, Arizona

86

3
The national flag of USA

Mesa, Arizona

73

4
The national flag of USA

Phoenix, Arizona

69

5
The national flag of USA

Pahala, Hawaii

66

6
The national flag of USA

Avenal, California

65

7
The national flag of USA

Gilbert, Arizona

64

8
The national flag of USA

Scottsdale, Arizona

61

9
The national flag of USA

Topeka, Kansas

60

10
The national flag of USA

Lancaster, California

59

Measure your own air quality

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

Where is the cleanest air quality in Boulder?