Air quality in Boulder

Air quality index (AQI⁺) and PM2.5 air pollution in Boulder • 07:00, May 14 Local time

Milliken AQI Alert nearby

Milliken AQI Alert nearby

View alert

26

US AQI⁺

Good

face expression based on aqi value

Main pollutant:

PM2.5

4.8 µg/m³

weather condition icon

18°

wind direction icon

3 km/h

weather humid icon

42 %

Hourly forecast

Boulder air quality index (AQI⁺) forecast

Now

26

Weather icon

18°

IQAir AirVisual Air Quality Map Wind rotating 179 degree

3

km/h

Humidity icon

42%

08:00

25

Weather icon

19°

IQAir AirVisual Air Quality Map Wind rotating 245 degree

5

km/h

Humidity icon

37%

09:00

26

Weather icon

20°

IQAir AirVisual Air Quality Map Wind rotating 229 degree

4

km/h

Humidity icon

36%

10:00

25

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 181 degree

7

km/h

Humidity icon

29%

11:00

25

Weather icon

24°

IQAir AirVisual Air Quality Map Wind rotating 175 degree

7

km/h

Humidity icon

26%

12:00

23

Weather icon

26°

IQAir AirVisual Air Quality Map Wind rotating 229 degree

3

km/h

Humidity icon

18%

13:00

23

Weather icon

28°

IQAir AirVisual Air Quality Map Wind rotating 282 degree

11

km/h

Humidity icon

14%

14:00

22

Weather icon

28°

IQAir AirVisual Air Quality Map Wind rotating 255 degree

9

km/h

Humidity icon

15%

15:00

21

Weather icon

28°

IQAir AirVisual Air Quality Map Wind rotating 265 degree

11

km/h

Humidity icon

16%

16:00

20

Weather icon

28°

IQAir AirVisual Air Quality Map Wind rotating 257 degree

9

km/h

Humidity icon

16%

17:00

19

Weather icon

28°

IQAir AirVisual Air Quality Map Wind rotating 257 degree

8

km/h

Humidity icon

17%

18:00

19

Weather icon

27°

IQAir AirVisual Air Quality Map Wind rotating 266 degree

9

km/h

Humidity icon

17%

19:00

18

Weather icon

26°

IQAir AirVisual Air Quality Map Wind rotating 292 degree

7

km/h

Humidity icon

19%

20:00

18

Weather icon

24°

IQAir AirVisual Air Quality Map Wind rotating 302 degree

8

km/h

Humidity icon

21%

21:00

21

Weather icon

23°

IQAir AirVisual Air Quality Map Wind rotating 299 degree

9

km/h

Humidity icon

23%

22:00

21

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 287 degree

5

km/h

Humidity icon

26%

23:00

21

Weather icon

20°

IQAir AirVisual Air Quality Map Wind rotating 122 degree

2

km/h

Humidity icon

37%

Fri

00:00

23

Weather icon

18°

IQAir AirVisual Air Quality Map Wind rotating 118 degree

6

km/h

Humidity icon

45%

01:00

23

Weather icon

17°

IQAir AirVisual Air Quality Map Wind rotating 169 degree

4

km/h

Humidity icon

47%

02:00

23

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 188 degree

4

km/h

Humidity icon

46%

03:00

16

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 242 degree

3

km/h

Humidity icon

37%

04:00

16

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 237 degree

4

km/h

Humidity icon

27%

05:00

16

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 251 degree

4

km/h

Humidity icon

28%

06:00

11

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 282 degree

4

km/h

Humidity icon

29%

07:00

11

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 281 degree

2

km/h

Humidity icon

23%

08:00

11

Weather icon

17°

IQAir AirVisual Air Quality Map Wind rotating 74 degree

3

km/h

Humidity icon

25%

09:00

10

Weather icon

20°

IQAir AirVisual Air Quality Map Wind rotating 110 degree

10

km/h

Humidity icon

20%

10:00

10

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 141 degree

16

km/h

Humidity icon

12%

11:00

10

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 142 degree

16

km/h

Humidity icon

12%

12:00

13

Weather icon

23°

IQAir AirVisual Air Quality Map Wind rotating 145 degree

16

km/h

Humidity icon

13%

13:00

13

Weather icon

24°

IQAir AirVisual Air Quality Map Wind rotating 143 degree

15

km/h

Humidity icon

13%

14:00

13

Weather icon

25°

IQAir AirVisual Air Quality Map Wind rotating 142 degree

15

km/h

Humidity icon

13%

15:00

12

Weather icon

26°

IQAir AirVisual Air Quality Map Wind rotating 149 degree

17

km/h

Humidity icon

14%

16:00

12

Weather icon

26°

IQAir AirVisual Air Quality Map Wind rotating 150 degree

19

km/h

Humidity icon

14%

17:00

12

Weather icon

26°

IQAir AirVisual Air Quality Map Wind rotating 144 degree

14

km/h

Humidity icon

15%

18:00

13

Weather icon

25°

IQAir AirVisual Air Quality Map Wind rotating 139 degree

11

km/h

Humidity icon

17%

19:00

13

Weather icon

24°

IQAir AirVisual Air Quality Map Wind rotating 145 degree

10

km/h

Humidity icon

19%

20:00

13

Weather icon

23°

IQAir AirVisual Air Quality Map Wind rotating 55 degree

6

km/h

Humidity icon

24%

21:00

19

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 352 degree

8

km/h

Humidity icon

29%

22:00

19

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 327 degree

7

km/h

Humidity icon

26%

23:00

19

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 318 degree

6

km/h

Humidity icon

25%

Sat

00:00

13

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 310 degree

7

km/h

Humidity icon

22%

01:00

13

Weather icon

20°

IQAir AirVisual Air Quality Map Wind rotating 318 degree

4

km/h

Humidity icon

26%

02:00

13

Weather icon

18°

IQAir AirVisual Air Quality Map Wind rotating 42 degree

6

km/h

Humidity icon

30%

03:00

13

Weather icon

18°

IQAir AirVisual Air Quality Map Wind rotating 200 degree

7

km/h

Humidity icon

30%

04:00

13

Weather icon

17°

IQAir AirVisual Air Quality Map Wind rotating 184 degree

2

km/h

Humidity icon

34%

05:00

13

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 136 degree

1

km/h

Humidity icon

39%

06:00

10

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 126 degree

4

km/h

Humidity icon

37%

07:00

10

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 355 degree

7

km/h

Humidity icon

37%

08:00

10

Weather icon

17°

IQAir AirVisual Air Quality Map Wind rotating 84 degree

5

km/h

Humidity icon

30%

09:00

13

Weather icon

19°

IQAir AirVisual Air Quality Map Wind rotating 74 degree

11

km/h

Humidity icon

26%

10:00

13

Weather icon

19°

IQAir AirVisual Air Quality Map Wind rotating 65 degree

9

km/h

Humidity icon

25%

11:00

13

Weather icon

20°

IQAir AirVisual Air Quality Map Wind rotating 68 degree

9

km/h

Humidity icon

23%

12:00

14

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 76 degree

9

km/h

Humidity icon

23%

13:00

14

Weather icon

23°

IQAir AirVisual Air Quality Map Wind rotating 130 degree

13

km/h

Humidity icon

23%

14:00

14

Weather icon

23°

IQAir AirVisual Air Quality Map Wind rotating 163 degree

18

km/h

Humidity icon

22%

15:00

17

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 297 degree

18

km/h

Humidity icon

26%

16:00

17

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 226 degree

16

km/h

Humidity icon

25%

17:00

17

Weather icon

80%

15°

IQAir AirVisual Air Quality Map Wind rotating 344 degree

7

km/h

Humidity icon

75%

18:00

16

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 254 degree

7

km/h

Humidity icon

59%

19:00

16

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 346 degree

11

km/h

Humidity icon

59%

20:00

16

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 76 degree

10

km/h

Humidity icon

72%

21:00

22

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 193 degree

0

km/h

Humidity icon

74%

22:00

22

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 265 degree

10

km/h

Humidity icon

74%

23:00

22

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 294 degree

6

km/h

Humidity icon

74%

Sun

00:00

19

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 357 degree

9

km/h

Humidity icon

75%

01:00

19

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 340 degree

5

km/h

Humidity icon

83%

02:00

19

Weather icon

80%

11°

IQAir AirVisual Air Quality Map Wind rotating 304 degree

8

km/h

Humidity icon

82%

03:00

18

Weather icon

10°

IQAir AirVisual Air Quality Map Wind rotating 323 degree

10

km/h

Humidity icon

83%

04:00

18

Weather icon

10°

IQAir AirVisual Air Quality Map Wind rotating 326 degree

8

km/h

Humidity icon

87%

05:00

18

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 339 degree

7

km/h

Humidity icon

87%

06:00

21

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 130 degree

2

km/h

Humidity icon

86%

Daily forecast

|

Boulder air quality index (AQI⁺) forecast

Today

24

Weather icon

28°

17°

IQAir AirVisual Air Quality Map Wind rotating 270 degree

11

km/h

Humidity icon

25%

Fri

16

Weather icon

26°

15°

IQAir AirVisual Air Quality Map Wind rotating 135 degree

19

km/h

Humidity icon

19%

Sat

14

Weather icon

23°

13°

IQAir AirVisual Air Quality Map Wind rotating 90 degree

18

km/h

Humidity icon

42%

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

common.healthRecommendationComp.icons.exerciseAlt

Enjoy outdoor activities

common.healthRecommendationComp.icons.windowAlt

Open your windows to bring clean, fresh air indoors

Get a monitor

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

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

1066 Berea Dr

42

2
The national flag of USA

5771-5701 Valmont Rd

36

3
The national flag of USA

Boulder Reservoir

30

4
The national flag of USA

10th Street

29

5
The national flag of USA

1491 High St

29

6
The national flag of USA

285 Vail Cir

28

7
The national flag of USA

717 Evergreen Boulder

27

8
The national flag of USA

Bean Mountain Lane

25

9
The national flag of USA

Boulder - CU - 2102 Athens St.

25

10
The national flag of USA

18th Street

21

City ranking

Real-time USA AQI⁺ city ranking

#CitiesAQI⁺ US
1
The national flag of USA

Palm Desert, California

123

2
The national flag of USA

Riverside County, California

103

3
The national flag of USA

Camden, New Jersey

80

4
The national flag of USA

Mission, Texas

68

5
The national flag of USA

Salt Lake City, Utah

68

6
The national flag of USA

Georgetown, Texas

67

7
The national flag of USA

Bismarck, North Dakota

63

8
The national flag of USA

Pahrump, Nevada

63

9
The national flag of USA

Rollingwood, Texas

61

10
The national flag of USA

Channelview, Texas

60

History

Historic air quality graph for Boulder

26 AQI⁺ US
Good
06:00–07:00 May 14 Local time
AQI⁺ US

History

Historic air quality graph for Boulder

26 AQI⁺ US
Good
06:00–07:00 May 14 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

1066 Berea Dr

42

2
The national flag of USA

5771-5701 Valmont Rd

36

3
The national flag of USA

Boulder Reservoir

30

4
The national flag of USA

10th Street

29

5
The national flag of USA

1491 High St

29

6
The national flag of USA

285 Vail Cir

28

7
The national flag of USA

717 Evergreen Boulder

27

8
The national flag of USA

Bean Mountain Lane

25

9
The national flag of USA

Boulder - CU - 2102 Athens St.

25

10
The national flag of USA

18th Street

21

City ranking

Real-time USA AQI⁺ city ranking

#CitiesAQI⁺ US
1
The national flag of USA

Palm Desert, California

123

2
The national flag of USA

Riverside County, California

103

3
The national flag of USA

Camden, New Jersey

80

4
The national flag of USA

Mission, Texas

68

5
The national flag of USA

Salt Lake City, Utah

68

6
The national flag of USA

Georgetown, Texas

67

7
The national flag of USA

Bismarck, North Dakota

63

8
The national flag of USA

Pahrump, Nevada

63

9
The national flag of USA

Rollingwood, Texas

61

10
The national flag of USA

Channelview, Texas

60

Measure your own air quality

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