Air quality in Hillsborough

Air quality index (AQI⁺) and PM2.5 air pollution in Hillsborough • 1 Follower • 23:00, May 11

65*

US AQI⁺

Moderate

face expression based on aqi value

Main pollutant:

PM2.5

16.8 µg/m³

weather condition icon

24°

wind direction icon

8 km/h

weather humid icon

88 %

Hourly forecast

Hillsborough air quality index (AQI⁺) forecast

Now

65

Weather icon

24°

IQAir AirVisual Air Quality Map Wind rotating 168 degree

8

km/h

Humidity icon

88%

Tue

02:00

65

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24°

IQAir AirVisual Air Quality Map Wind rotating 207 degree

5

km/h

Humidity icon

95%

03:00

64

Weather icon

24°

IQAir AirVisual Air Quality Map Wind rotating 233 degree

3

km/h

Humidity icon

97%

04:00

64

Weather icon

24°

IQAir AirVisual Air Quality Map Wind rotating 269 degree

4

km/h

Humidity icon

96%

05:00

64

Weather icon

24°

IQAir AirVisual Air Quality Map Wind rotating 263 degree

3

km/h

Humidity icon

93%

06:00

63

Weather icon

24°

IQAir AirVisual Air Quality Map Wind rotating 188 degree

3

km/h

Humidity icon

91%

07:00

63

Weather icon

24°

IQAir AirVisual Air Quality Map Wind rotating 164 degree

3

km/h

Humidity icon

94%

08:00

61

Weather icon

25°

IQAir AirVisual Air Quality Map Wind rotating 146 degree

3

km/h

Humidity icon

87%

09:00

61

Weather icon

26°

IQAir AirVisual Air Quality Map Wind rotating 142 degree

2

km/h

Humidity icon

80%

10:00

60

Weather icon

28°

IQAir AirVisual Air Quality Map Wind rotating 18 degree

2

km/h

Humidity icon

68%

11:00

60

Weather icon

30°

IQAir AirVisual Air Quality Map Wind rotating 15 degree

4

km/h

Humidity icon

57%

12:00

60

Weather icon

31°

IQAir AirVisual Air Quality Map Wind rotating 356 degree

4

km/h

Humidity icon

52%

13:00

60

Weather icon

31°

IQAir AirVisual Air Quality Map Wind rotating 18 degree

5

km/h

Humidity icon

51%

14:00

63

Weather icon

31°

IQAir AirVisual Air Quality Map Wind rotating 30 degree

13

km/h

Humidity icon

48%

15:00

63

Weather icon

27°

IQAir AirVisual Air Quality Map Wind rotating 52 degree

27

km/h

Humidity icon

65%

16:00

63

Weather icon

27°

IQAir AirVisual Air Quality Map Wind rotating 51 degree

24

km/h

Humidity icon

71%

17:00

64

Weather icon

27°

IQAir AirVisual Air Quality Map Wind rotating 46 degree

21

km/h

Humidity icon

71%

18:00

64

Weather icon

90%

26°

IQAir AirVisual Air Quality Map Wind rotating 57 degree

23

km/h

Humidity icon

65%

19:00

64

Weather icon

26°

IQAir AirVisual Air Quality Map Wind rotating 40 degree

21

km/h

Humidity icon

66%

20:00

64

Weather icon

26°

IQAir AirVisual Air Quality Map Wind rotating 56 degree

26

km/h

Humidity icon

73%

21:00

64

Weather icon

24°

IQAir AirVisual Air Quality Map Wind rotating 33 degree

25

km/h

Humidity icon

83%

22:00

64

Weather icon

90%

23°

IQAir AirVisual Air Quality Map Wind rotating 48 degree

16

km/h

Humidity icon

90%

23:00

62

Weather icon

90%

23°

IQAir AirVisual Air Quality Map Wind rotating 69 degree

10

km/h

Humidity icon

88%

Wed

00:00

62

Weather icon

23°

IQAir AirVisual Air Quality Map Wind rotating 65 degree

11

km/h

Humidity icon

91%

01:00

62

Weather icon

90%

23°

IQAir AirVisual Air Quality Map Wind rotating 69 degree

10

km/h

Humidity icon

94%

02:00

61

Weather icon

23°

IQAir AirVisual Air Quality Map Wind rotating 69 degree

10

km/h

Humidity icon

94%

03:00

61

Weather icon

23°

IQAir AirVisual Air Quality Map Wind rotating 49 degree

10

km/h

Humidity icon

92%

04:00

61

Weather icon

23°

IQAir AirVisual Air Quality Map Wind rotating 44 degree

9

km/h

Humidity icon

92%

05:00

61

Weather icon

23°

IQAir AirVisual Air Quality Map Wind rotating 45 degree

10

km/h

Humidity icon

94%

06:00

61

Weather icon

23°

IQAir AirVisual Air Quality Map Wind rotating 49 degree

10

km/h

Humidity icon

95%

07:00

61

Weather icon

23°

IQAir AirVisual Air Quality Map Wind rotating 53 degree

12

km/h

Humidity icon

94%

08:00

59

Weather icon

24°

IQAir AirVisual Air Quality Map Wind rotating 50 degree

9

km/h

Humidity icon

89%

09:00

59

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25°

IQAir AirVisual Air Quality Map Wind rotating 59 degree

5

km/h

Humidity icon

78%

10:00

59

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26°

IQAir AirVisual Air Quality Map Wind rotating 251 degree

4

km/h

Humidity icon

74%

11:00

58

Weather icon

28°

IQAir AirVisual Air Quality Map Wind rotating 259 degree

9

km/h

Humidity icon

71%

12:00

58

Weather icon

29°

IQAir AirVisual Air Quality Map Wind rotating 255 degree

11

km/h

Humidity icon

66%

13:00

58

Weather icon

29°

IQAir AirVisual Air Quality Map Wind rotating 259 degree

16

km/h

Humidity icon

65%

14:00

60

Weather icon

30°

IQAir AirVisual Air Quality Map Wind rotating 269 degree

17

km/h

Humidity icon

64%

15:00

60

Weather icon

29°

IQAir AirVisual Air Quality Map Wind rotating 268 degree

21

km/h

Humidity icon

65%

16:00

60

Weather icon

29°

IQAir AirVisual Air Quality Map Wind rotating 273 degree

23

km/h

Humidity icon

65%

17:00

61

Weather icon

29°

IQAir AirVisual Air Quality Map Wind rotating 276 degree

21

km/h

Humidity icon

69%

18:00

61

Weather icon

28°

IQAir AirVisual Air Quality Map Wind rotating 273 degree

21

km/h

Humidity icon

70%

19:00

61

Weather icon

27°

IQAir AirVisual Air Quality Map Wind rotating 276 degree

19

km/h

Humidity icon

74%

20:00

54

Weather icon

26°

IQAir AirVisual Air Quality Map Wind rotating 282 degree

16

km/h

Humidity icon

78%

21:00

54

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25°

IQAir AirVisual Air Quality Map Wind rotating 308 degree

14

km/h

Humidity icon

69%

22:00

54

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24°

IQAir AirVisual Air Quality Map Wind rotating 315 degree

12

km/h

Humidity icon

72%

23:00

44

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24°

IQAir AirVisual Air Quality Map Wind rotating 320 degree

14

km/h

Humidity icon

75%

Thu

00:00

44

Weather icon

24°

IQAir AirVisual Air Quality Map Wind rotating 320 degree

13

km/h

Humidity icon

76%

01:00

44

Weather icon

24°

IQAir AirVisual Air Quality Map Wind rotating 324 degree

12

km/h

Humidity icon

77%

02:00

44

Weather icon

23°

IQAir AirVisual Air Quality Map Wind rotating 319 degree

11

km/h

Humidity icon

80%

03:00

44

Weather icon

23°

IQAir AirVisual Air Quality Map Wind rotating 320 degree

11

km/h

Humidity icon

81%

04:00

44

Weather icon

23°

IQAir AirVisual Air Quality Map Wind rotating 338 degree

11

km/h

Humidity icon

84%

05:00

57

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 353 degree

10

km/h

Humidity icon

86%

06:00

57

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 354 degree

8

km/h

Humidity icon

84%

07:00

57

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 352 degree

6

km/h

Humidity icon

82%

08:00

62

Weather icon

24°

IQAir AirVisual Air Quality Map Wind rotating 348 degree

7

km/h

Humidity icon

71%

09:00

62

Weather icon

26°

IQAir AirVisual Air Quality Map Wind rotating 331 degree

9

km/h

Humidity icon

58%

10:00

62

Weather icon

28°

IQAir AirVisual Air Quality Map Wind rotating 318 degree

11

km/h

Humidity icon

44%

11:00

61

Weather icon

30°

IQAir AirVisual Air Quality Map Wind rotating 299 degree

13

km/h

Humidity icon

36%

12:00

61

Weather icon

31°

IQAir AirVisual Air Quality Map Wind rotating 280 degree

19

km/h

Humidity icon

34%

13:00

61

Weather icon

31°

IQAir AirVisual Air Quality Map Wind rotating 278 degree

25

km/h

Humidity icon

34%

14:00

60

Weather icon

31°

IQAir AirVisual Air Quality Map Wind rotating 281 degree

27

km/h

Humidity icon

33%

15:00

60

Weather icon

31°

IQAir AirVisual Air Quality Map Wind rotating 283 degree

27

km/h

Humidity icon

32%

16:00

60

Weather icon

31°

IQAir AirVisual Air Quality Map Wind rotating 284 degree

27

km/h

Humidity icon

33%

17:00

62

Weather icon

30°

IQAir AirVisual Air Quality Map Wind rotating 288 degree

25

km/h

Humidity icon

33%

18:00

62

Weather icon

30°

IQAir AirVisual Air Quality Map Wind rotating 294 degree

25

km/h

Humidity icon

35%

19:00

62

Weather icon

28°

IQAir AirVisual Air Quality Map Wind rotating 299 degree

24

km/h

Humidity icon

41%

20:00

63

Weather icon

26°

IQAir AirVisual Air Quality Map Wind rotating 302 degree

21

km/h

Humidity icon

49%

21:00

63

Weather icon

25°

IQAir AirVisual Air Quality Map Wind rotating 307 degree

18

km/h

Humidity icon

54%

22:00

63

Weather icon

25°

IQAir AirVisual Air Quality Map Wind rotating 312 degree

16

km/h

Humidity icon

53%

23:00

63

Weather icon

24°

IQAir AirVisual Air Quality Map Wind rotating 322 degree

16

km/h

Humidity icon

53%

Fri

00:00

63

Weather icon

23°

IQAir AirVisual Air Quality Map Wind rotating 338 degree

14

km/h

Humidity icon

57%

Daily forecast

|

Hillsborough air quality index (AQI⁺) forecast

Today

63

Weather icon

31°

23°

IQAir AirVisual Air Quality Map Wind rotating 45 degree

27

km/h

Humidity icon

71%

Wed

61

Weather icon

30°

23°

IQAir AirVisual Air Quality Map Wind rotating 270 degree

23

km/h

Humidity icon

74%

Thu

56

Weather icon

31°

22°

IQAir AirVisual Air Quality Map Wind rotating 270 degree

27

km/h

Humidity icon

47%

Air pollutants

What is the current air quality in Hillsborough?

IQAir exclamation icon

PM2.5 concentration is currently 3.4 times the World Health Organization annual PM2.5 guideline value.

Health recommendations

common.healthRecommendationComp.icons.exerciseAlt

Sensitive groups should reduce outdoor exercise

common.healthRecommendationComp.icons.windowAlt

Close your windows to avoid dirty outdoor air

Get a monitor
common.healthRecommendationComp.icons.maskAlt

Sensitive groups should wear a mask outdoors

Get a mask
common.healthRecommendationComp.icons.airPurifierAlt

Sensitive groups should run an air purifier

Get an air purifier

Protect yourself from air pollution in Hillsborough

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 Hillsborough today?

Index

Pollen global icon

Moderate

Pollen tree icon

Tree

Low

25%
Pollen grass icon

Grass

Moderate

50%
Pollen weed icon

Weed

None

0%

Source:

wetter.com
Pollen forecast in Hillsborough

Health recommendations

common.healthRecommendationComp.icons.exerciseAlt

Sensitive groups should reduce outdoor exercise

common.healthRecommendationComp.icons.windowAlt

Close your windows to avoid dirty outdoor air

Get a monitor
common.healthRecommendationComp.icons.maskAlt

Sensitive groups should wear a mask outdoors

Get a mask
common.healthRecommendationComp.icons.airPurifierAlt

Sensitive groups should run an air purifier

Get an air purifier

Pollen

What is the pollen count in Hillsborough today?

Index

Pollen global icon

Moderate

Pollen tree icon

Tree

Low

25%
Pollen grass icon

Grass

Moderate

50%
Pollen weed icon

Weed

None

0%

Source:

wetter.com
Pollen forecast in Hillsborough

Protect yourself from air pollution in Hillsborough

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 Hillsborough

Worldwide AQI⁺ rankingArrow icon

City ranking

Real-time USA AQI⁺ city ranking

#CitiesAQI⁺ US
1
The national flag of USA

Davenport, Iowa

85

2
The national flag of USA

Huntington Park, California

75

3
The national flag of USA

Fallbrook, California

73

4
The national flag of USA

Florence-Graham, California

70

5
The national flag of USA

South Gate, California

69

6
The national flag of USA

Encinitas, California

65

7
The national flag of USA

Casa Grande, Arizona

63

8
The national flag of USA

East Los Angeles, California

63

9
The national flag of USA

Jurupa Valley, California

63

10
The national flag of USA

Solana Beach, California

63

History

Historic air quality graph for Hillsborough

65 AQI⁺ US
Moderate
23:00–00:00 May 11 
AQI⁺ US

History

Historic air quality graph for Hillsborough

65 AQI⁺ US
Moderate
23:00–00:00 May 11 
AQI⁺ US

Most polluted locations near Hillsborough

Worldwide AQI⁺ rankingArrow icon

City ranking

Real-time USA AQI⁺ city ranking

#CitiesAQI⁺ US
1
The national flag of USA

Davenport, Iowa

85

2
The national flag of USA

Huntington Park, California

75

3
The national flag of USA

Fallbrook, California

73

4
The national flag of USA

Florence-Graham, California

70

5
The national flag of USA

South Gate, California

69

6
The national flag of USA

Encinitas, California

65

7
The national flag of USA

Casa Grande, Arizona

63

8
The national flag of USA

East Los Angeles, California

63

9
The national flag of USA

Jurupa Valley, California

63

10
The national flag of USA

Solana Beach, California

63

Be the first to measure and contribute air quality data to your community

Where is the cleanest air quality in Hillsborough?

No locations are available.