Air quality in Boulder

Air quality index (AQI⁺) and PM2.5 air pollution in Boulder • 437 Followers • 18:00, Apr 21 Local time

30

US AQI⁺

Good

face expression based on aqi value

Main pollutant:

PM2.5

5.4 µg/m³

weather condition icon

22°

wind direction icon

26 km/h

weather humid icon

20 %

Hourly forecast

Boulder air quality index (AQI⁺) forecast

Now

30

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 174 degree

26

km/h

Humidity icon

20%

19:00

29

Weather icon

20°

IQAir AirVisual Air Quality Map Wind rotating 173 degree

23

km/h

Humidity icon

22%

20:00

28

Weather icon

18°

IQAir AirVisual Air Quality Map Wind rotating 167 degree

14

km/h

Humidity icon

29%

21:00

28

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16°

IQAir AirVisual Air Quality Map Wind rotating 166 degree

11

km/h

Humidity icon

35%

22:00

27

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 173 degree

10

km/h

Humidity icon

31%

23:00

26

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 171 degree

8

km/h

Humidity icon

34%

Wed

00:00

26

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 171 degree

5

km/h

Humidity icon

38%

01:00

25

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 175 degree

2

km/h

Humidity icon

39%

02:00

24

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 257 degree

1

km/h

Humidity icon

40%

03:00

21

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 206 degree

2

km/h

Humidity icon

41%

04:00

20

Weather icon

10°

IQAir AirVisual Air Quality Map Wind rotating 147 degree

7

km/h

Humidity icon

54%

05:00

19

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 163 degree

9

km/h

Humidity icon

62%

06:00

17

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 165 degree

9

km/h

Humidity icon

70%

07:00

17

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 172 degree

9

km/h

Humidity icon

77%

08:00

17

Weather icon

10°

IQAir AirVisual Air Quality Map Wind rotating 173 degree

26

km/h

Humidity icon

58%

09:00

14

Weather icon

10°

IQAir AirVisual Air Quality Map Wind rotating 182 degree

34

km/h

Humidity icon

49%

10:00

14

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 190 degree

31

km/h

Humidity icon

41%

11:00

14

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 188 degree

29

km/h

Humidity icon

36%

12:00

7

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 188 degree

29

km/h

Humidity icon

36%

13:00

7

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 205 degree

30

km/h

Humidity icon

41%

14:00

7

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 256 degree

35

km/h

Humidity icon

52%

15:00

6

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 244 degree

33

km/h

Humidity icon

40%

16:00

6

Weather icon

10°

IQAir AirVisual Air Quality Map Wind rotating 244 degree

31

km/h

Humidity icon

48%

17:00

6

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 252 degree

21

km/h

Humidity icon

62%

18:00

6

Weather icon

90%

IQAir AirVisual Air Quality Map Wind rotating 261 degree

27

km/h

Humidity icon

61%

19:00

6

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 262 degree

25

km/h

Humidity icon

57%

20:00

6

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 258 degree

21

km/h

Humidity icon

65%

21:00

6

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 248 degree

20

km/h

Humidity icon

66%

22:00

6

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 248 degree

18

km/h

Humidity icon

66%

23:00

6

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 252 degree

13

km/h

Humidity icon

71%

Thu

00:00

6

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 255 degree

15

km/h

Humidity icon

80%

01:00

6

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 256 degree

13

km/h

Humidity icon

78%

02:00

6

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 272 degree

11

km/h

Humidity icon

84%

03:00

6

Weather icon

90%

IQAir AirVisual Air Quality Map Wind rotating 294 degree

8

km/h

Humidity icon

93%

04:00

6

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 306 degree

6

km/h

Humidity icon

96%

05:00

6

Weather icon

90%

IQAir AirVisual Air Quality Map Wind rotating 281 degree

10

km/h

Humidity icon

84%

06:00

6

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 286 degree

16

km/h

Humidity icon

81%

07:00

6

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 282 degree

12

km/h

Humidity icon

80%

08:00

6

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 291 degree

10

km/h

Humidity icon

67%

09:00

6

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 301 degree

14

km/h

Humidity icon

59%

10:00

6

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 312 degree

20

km/h

Humidity icon

53%

11:00

6

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 351 degree

18

km/h

Humidity icon

50%

12:00

6

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 12 degree

19

km/h

Humidity icon

51%

13:00

6

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 17 degree

20

km/h

Humidity icon

53%

14:00

6

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 20 degree

15

km/h

Humidity icon

68%

15:00

6

Weather icon

90%

IQAir AirVisual Air Quality Map Wind rotating 24 degree

12

km/h

Humidity icon

83%

16:00

6

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 17 degree

13

km/h

Humidity icon

58%

17:00

6

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 12 degree

18

km/h

Humidity icon

65%

18:00

6

Weather icon

90%

IQAir AirVisual Air Quality Map Wind rotating 15 degree

15

km/h

Humidity icon

71%

19:00

6

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 34 degree

16

km/h

Humidity icon

62%

20:00

6

Weather icon

-1°

IQAir AirVisual Air Quality Map Wind rotating 35 degree

14

km/h

Humidity icon

66%

21:00

9

Weather icon

-3°

IQAir AirVisual Air Quality Map Wind rotating 18 degree

11

km/h

Humidity icon

65%

22:00

9

Weather icon

-4°

IQAir AirVisual Air Quality Map Wind rotating 360 degree

8

km/h

Humidity icon

66%

23:00

9

Weather icon

-5°

IQAir AirVisual Air Quality Map Wind rotating 329 degree

6

km/h

Humidity icon

69%

Fri

00:00

12

Weather icon

-5°

IQAir AirVisual Air Quality Map Wind rotating 312 degree

7

km/h

Humidity icon

70%

01:00

12

Weather icon

-5°

IQAir AirVisual Air Quality Map Wind rotating 291 degree

7

km/h

Humidity icon

70%

02:00

12

Weather icon

-5°

IQAir AirVisual Air Quality Map Wind rotating 306 degree

7

km/h

Humidity icon

69%

03:00

12

Weather icon

-5°

IQAir AirVisual Air Quality Map Wind rotating 314 degree

7

km/h

Humidity icon

69%

04:00

12

Weather icon

-5°

IQAir AirVisual Air Quality Map Wind rotating 323 degree

8

km/h

Humidity icon

68%

05:00

12

Weather icon

-4°

IQAir AirVisual Air Quality Map Wind rotating 343 degree

8

km/h

Humidity icon

66%

06:00

12

Weather icon

-4°

IQAir AirVisual Air Quality Map Wind rotating 28 degree

7

km/h

Humidity icon

65%

07:00

12

Weather icon

-3°

IQAir AirVisual Air Quality Map Wind rotating 61 degree

6

km/h

Humidity icon

64%

08:00

12

Weather icon

-2°

IQAir AirVisual Air Quality Map Wind rotating 88 degree

4

km/h

Humidity icon

57%

09:00

10

Weather icon

-2°

IQAir AirVisual Air Quality Map Wind rotating 79 degree

8

km/h

Humidity icon

46%

10:00

10

Weather icon

-2°

IQAir AirVisual Air Quality Map Wind rotating 57 degree

13

km/h

Humidity icon

44%

11:00

10

Weather icon

-1°

IQAir AirVisual Air Quality Map Wind rotating 48 degree

14

km/h

Humidity icon

51%

12:00

9

Weather icon

-1°

IQAir AirVisual Air Quality Map Wind rotating 53 degree

14

km/h

Humidity icon

47%

13:00

9

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 47 degree

19

km/h

Humidity icon

46%

14:00

9

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 43 degree

21

km/h

Humidity icon

47%

15:00

6

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 32 degree

22

km/h

Humidity icon

41%

16:00

6

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 20 degree

24

km/h

Humidity icon

38%

17:00

6

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 21 degree

22

km/h

Humidity icon

38%

Daily forecast

|

Boulder air quality index (AQI⁺) forecast

Today

17

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 180 degree

35

km/h

Humidity icon

54%

Wed

6

Weather icon

-4°

IQAir AirVisual Air Quality Map Wind rotating 0 degree

20

km/h

Humidity icon

64%

Thu

10

Weather icon

-7°

IQAir AirVisual Air Quality Map Wind rotating 45 degree

24

km/h

Humidity icon

47%

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

common.healthRecommendationComp.icons.exerciseAlt

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

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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

30

City ranking

Real-time USA AQI⁺ city ranking

#CitiesAQI⁺ US
1
The national flag of USA

Indio, California

348

2
The national flag of USA

Calipatria, California

192

3
The national flag of USA

Avenal, California

183

4
The national flag of USA

Minneapolis, Minnesota

89

5
The national flag of USA

Coachella, California

83

6
The national flag of USA

Lauderdale, Minnesota

76

7
The national flag of USA

Calexico, California

75

8
The national flag of USA

El Centro, California

75

9
The national flag of USA

Pahrump, Nevada

75

10
The national flag of USA

Brunswick, Georgia

74

History

Historic air quality graph for Boulder

30 AQI⁺ US
Good
17:00–18:00 Apr 21 Local time
AQI⁺ US

History

Historic air quality graph for Boulder

30 AQI⁺ US
Good
17:00–18:00 Apr 21 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

30

City ranking

Real-time USA AQI⁺ city ranking

#CitiesAQI⁺ US
1
The national flag of USA

Indio, California

348

2
The national flag of USA

Calipatria, California

192

3
The national flag of USA

Avenal, California

183

4
The national flag of USA

Minneapolis, Minnesota

89

5
The national flag of USA

Coachella, California

83

6
The national flag of USA

Lauderdale, Minnesota

76

7
The national flag of USA

Calexico, California

75

8
The national flag of USA

El Centro, California

75

9
The national flag of USA

Pahrump, Nevada

75

10
The national flag of USA

Brunswick, Georgia

74

Measure your own air quality

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

Where is the cleanest air quality in Boulder?