WorldArrow icon
Arrow iconBoulder

Air quality in Boulder

Air quality index (AQI⁺) and PM2.5 air pollution in Boulder • 135 Followers • 06:00, Sep 20 Local time

Colorado Department of Public Health & Environment (CDPHE)Russ StewartAnonymous contributor

19

US AQI⁺

Good

face expression based on aqi value

Main pollutant:

O₃

42 µg/m³

weather condition icon

15°

wind direction icon

2 km/h

weather humid icon

62 %

Colorado Department of Public Health & Environment (CDPHE)Russ StewartAnonymous contributor

Hourly forecast

Boulder air quality index (AQI⁺) forecast

Now

19

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 9 degree

2

km/h

Humidity icon

62%

07:00

19

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 14 degree

12

km/h

Humidity icon

78%

08:00

20

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 353 degree

9

km/h

Humidity icon

76%

09:00

22

Weather icon

70%

13°

IQAir AirVisual Air Quality Map Wind rotating 360 degree

3

km/h

Humidity icon

91%

10:00

22

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 81 degree

1

km/h

Humidity icon

91%

11:00

22

Weather icon

17°

IQAir AirVisual Air Quality Map Wind rotating 282 degree

1

km/h

Humidity icon

68%

12:00

23

Weather icon

19°

IQAir AirVisual Air Quality Map Wind rotating 140 degree

6

km/h

Humidity icon

55%

13:00

21

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 147 degree

7

km/h

Humidity icon

49%

14:00

19

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 130 degree

9

km/h

Humidity icon

45%

15:00

17

Weather icon

23°

IQAir AirVisual Air Quality Map Wind rotating 116 degree

7

km/h

Humidity icon

46%

16:00

17

Weather icon

23°

IQAir AirVisual Air Quality Map Wind rotating 104 degree

6

km/h

Humidity icon

46%

17:00

17

Weather icon

23°

IQAir AirVisual Air Quality Map Wind rotating 104 degree

6

km/h

Humidity icon

45%

18:00

18

Weather icon

23°

IQAir AirVisual Air Quality Map Wind rotating 78 degree

5

km/h

Humidity icon

46%

19:00

18

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 61 degree

5

km/h

Humidity icon

52%

20:00

18

Weather icon

20°

IQAir AirVisual Air Quality Map Wind rotating 22 degree

10

km/h

Humidity icon

53%

21:00

18

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 347 degree

9

km/h

Humidity icon

69%

22:00

14

Weather icon

17°

IQAir AirVisual Air Quality Map Wind rotating 341 degree

5

km/h

Humidity icon

66%

23:00

11

Weather icon

17°

IQAir AirVisual Air Quality Map Wind rotating 338 degree

2

km/h

Humidity icon

67%

Mon

00:00

8

Weather icon

17°

IQAir AirVisual Air Quality Map Wind rotating 28 degree

4

km/h

Humidity icon

75%

01:00

9

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 36 degree

7

km/h

Humidity icon

81%

02:00

10

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 33 degree

5

km/h

Humidity icon

78%

03:00

12

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 44 degree

4

km/h

Humidity icon

83%

04:00

13

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 63 degree

5

km/h

Humidity icon

81%

05:00

15

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 123 degree

4

km/h

Humidity icon

83%

06:00

17

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 138 degree

3

km/h

Humidity icon

90%

07:00

18

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 350 degree

0

km/h

Humidity icon

86%

08:00

20

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 123 degree

2

km/h

Humidity icon

82%

09:00

22

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 109 degree

2

km/h

Humidity icon

77%

10:00

18

Weather icon

17°

IQAir AirVisual Air Quality Map Wind rotating 159 degree

6

km/h

Humidity icon

71%

11:00

15

Weather icon

19°

IQAir AirVisual Air Quality Map Wind rotating 144 degree

8

km/h

Humidity icon

55%

12:00

12

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 128 degree

10

km/h

Humidity icon

48%

13:00

14

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 130 degree

10

km/h

Humidity icon

42%

14:00

16

Weather icon

23°

IQAir AirVisual Air Quality Map Wind rotating 135 degree

10

km/h

Humidity icon

38%

15:00

19

Weather icon

23°

IQAir AirVisual Air Quality Map Wind rotating 134 degree

10

km/h

Humidity icon

36%

16:00

17

Weather icon

23°

IQAir AirVisual Air Quality Map Wind rotating 132 degree

7

km/h

Humidity icon

34%

17:00

15

Weather icon

23°

IQAir AirVisual Air Quality Map Wind rotating 112 degree

4

km/h

Humidity icon

35%

18:00

13

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 73 degree

4

km/h

Humidity icon

37%

19:00

14

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 55 degree

4

km/h

Humidity icon

38%

20:00

16

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 25 degree

3

km/h

Humidity icon

42%

21:00

18

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 73 degree

5

km/h

Humidity icon

45%

22:00

14

Weather icon

20°

IQAir AirVisual Air Quality Map Wind rotating 83 degree

5

km/h

Humidity icon

51%

23:00

11

Weather icon

19°

IQAir AirVisual Air Quality Map Wind rotating 73 degree

5

km/h

Humidity icon

61%

Tue

00:00

8

Weather icon

18°

IQAir AirVisual Air Quality Map Wind rotating 23 degree

8

km/h

Humidity icon

67%

01:00

10

Weather icon

17°

IQAir AirVisual Air Quality Map Wind rotating 5 degree

14

km/h

Humidity icon

64%

02:00

13

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 12 degree

11

km/h

Humidity icon

71%

03:00

16

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 21 degree

9

km/h

Humidity icon

75%

04:00

16

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 4 degree

9

km/h

Humidity icon

80%

05:00

16

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 24 degree

6

km/h

Humidity icon

85%

06:00

16

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 25 degree

5

km/h

Humidity icon

88%

07:00

18

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 257 degree

7

km/h

Humidity icon

44%

08:00

20

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 257 degree

4

km/h

Humidity icon

39%

09:00

22

Weather icon

19°

IQAir AirVisual Air Quality Map Wind rotating 112 degree

6

km/h

Humidity icon

32%

10:00

21

Weather icon

20°

IQAir AirVisual Air Quality Map Wind rotating 109 degree

8

km/h

Humidity icon

32%

11:00

20

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 99 degree

9

km/h

Humidity icon

32%

12:00

20

Weather icon

24°

IQAir AirVisual Air Quality Map Wind rotating 99 degree

10

km/h

Humidity icon

33%

13:00

19

Weather icon

25°

IQAir AirVisual Air Quality Map Wind rotating 102 degree

10

km/h

Humidity icon

30%

14:00

19

Weather icon

26°

IQAir AirVisual Air Quality Map Wind rotating 113 degree

12

km/h

Humidity icon

25%

15:00

19

Weather icon

27°

IQAir AirVisual Air Quality Map Wind rotating 119 degree

11

km/h

Humidity icon

23%

16:00

18

Weather icon

27°

IQAir AirVisual Air Quality Map Wind rotating 121 degree

10

km/h

Humidity icon

22%

17:00

17

Weather icon

27°

IQAir AirVisual Air Quality Map Wind rotating 102 degree

11

km/h

Humidity icon

22%

18:00

17

Weather icon

26°

IQAir AirVisual Air Quality Map Wind rotating 92 degree

12

km/h

Humidity icon

26%

19:00

20

Weather icon

20°

IQAir AirVisual Air Quality Map Wind rotating 87 degree

7

km/h

Humidity icon

40%

20:00

23

Weather icon

19°

IQAir AirVisual Air Quality Map Wind rotating 288 degree

6

km/h

Humidity icon

42%

21:00

27

Weather icon

18°

IQAir AirVisual Air Quality Map Wind rotating 268 degree

11

km/h

Humidity icon

46%

22:00

29

Weather icon

18°

IQAir AirVisual Air Quality Map Wind rotating 263 degree

12

km/h

Humidity icon

49%

23:00

31

Weather icon

17°

IQAir AirVisual Air Quality Map Wind rotating 272 degree

12

km/h

Humidity icon

49%

Wed

00:00

33

Weather icon

17°

IQAir AirVisual Air Quality Map Wind rotating 258 degree

10

km/h

Humidity icon

52%

01:00

27

Weather icon

70%

17°

IQAir AirVisual Air Quality Map Wind rotating 258 degree

7

km/h

Humidity icon

53%

02:00

21

Weather icon

17°

IQAir AirVisual Air Quality Map Wind rotating 273 degree

8

km/h

Humidity icon

49%

03:00

16

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 295 degree

5

km/h

Humidity icon

49%

04:00

17

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 208 degree

2

km/h

Humidity icon

52%

05:00

18

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 265 degree

5

km/h

Humidity icon

51%

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.

air quality map

Real-time Boulder air pollution map

Health recommendations

Protect yourself from air pollution in Boulder

SHOP IQAIR PRODUCTS

Air Purifiers

Face Masks

Air Quality Monitors

Pollen

What is the pollen count in Boulder today?

Index

Pollen global icon

Moderate

Pollen tree icon

Tree

None

0%
Pollen grass icon

Grass

None

0%
Pollen weed icon

Weed

Moderate

50%

Source:

wetter.com
Pollen forecast in Boulder

Health recommendations

air quality map

Real-time Boulder air pollution map

Pollen

What is the pollen count in Boulder today?

Index

Pollen global icon

Moderate

Pollen tree icon

Tree

None

0%
Pollen grass icon

Grass

None

0%
Pollen weed icon

Weed

Moderate

50%

Source:

wetter.com
Pollen forecast in Boulder

Protect yourself from air pollution in Boulder

SHOP IQAIR PRODUCTS

Air Purifiers

Face Masks

Air Quality Monitors

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

717 Evergreen Boulder

16

2
The national flag of USA

Aztec Central

16

3
The national flag of USA

700 Utica Ave

13

4
The national flag of USA

Bean Mountain Lane

13

5
The national flag of USA

10th Street

12

6
The national flag of USA

2055-1901 Kalmia Ave

11

7
The national flag of USA

285 Vail Cir

11

8
The national flag of USA

1066 Berea Dr

9

9
The national flag of USA

4792-4766 Kellogg Cir

9

10
The national flag of USA

Boulder - CU - 2102 Athens St.

4

City ranking

Real-time USA AQI⁺ city ranking

#CitiesAQI⁺ US
1
The national flag of USA

Sparta, Ohio

87

2
The national flag of USA

Ontario, California

86

3
The national flag of USA

Avenal, California

79

4
The national flag of USA

Medina, Ohio

74

5
The national flag of USA

Calexico, California

73

6
The national flag of USA

Bowling Green, Ohio

72

7
The national flag of USA

Memphis, Tennessee

72

8
The national flag of USA

Beaumont, California

71

9
The national flag of USA

Sangamon County, Illinois

71

10
The national flag of USA

Canton, Ohio

69

History

Historic air quality graph for Boulder

11 AQI⁺ US
Good
05:00–06:00 Sep 20 Local time
AQI⁺ US

History

Historic air quality graph for Boulder

11 AQI⁺ US
Good
05:00–06:00 Sep 20 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

717 Evergreen Boulder

16

2
The national flag of USA

Aztec Central

16

3
The national flag of USA

700 Utica Ave

13

4
The national flag of USA

Bean Mountain Lane

13

5
The national flag of USA

10th Street

12

6
The national flag of USA

2055-1901 Kalmia Ave

11

7
The national flag of USA

285 Vail Cir

11

8
The national flag of USA

1066 Berea Dr

9

9
The national flag of USA

4792-4766 Kellogg Cir

9

10
The national flag of USA

Boulder - CU - 2102 Athens St.

4

City ranking

Real-time USA AQI⁺ city ranking

#CitiesAQI⁺ US
1
The national flag of USA

Sparta, Ohio

87

2
The national flag of USA

Ontario, California

86

3
The national flag of USA

Avenal, California

79

4
The national flag of USA

Medina, Ohio

74

5
The national flag of USA

Calexico, California

73

6
The national flag of USA

Bowling Green, Ohio

72

7
The national flag of USA

Memphis, Tennessee

72

8
The national flag of USA

Beaumont, California

71

9
The national flag of USA

Sangamon County, Illinois

71

10
The national flag of USA

Canton, Ohio

69

Measure your own air quality

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

Get a monitorHow to contribute
Forest fire.
external link icon

Wildfire Map Spotlight: Dome Fire, Yosemite National Park, California

external link icon

Wildfire Map Spotlight: Floriston Fire, California

Dense forest burning.
external link icon

Wildfire Map Spotlight: Austin Fire, Oregon

Begin your journey for cleaner air #IQAir

IQAir InstagramVisit us
IQAir TwitterVisit us
IQAir TiktokVisit us
IQAir FacebookVisit us

Where is the cleanest air quality in Boulder?