Stay updated with real-time pollen levels in Hillsborough, California. Use our interactive maps and forecasts to manage allergies and confidently plan outdoor activities.
Live Pollen Level
Low
Hillsborough, California
Last updated: ... (Local time)
Disclaimer: The information provided is for informational purposes only and should not be considered medical advice. Always consult a healthcare professional for allergy-related concerns.
Low
Moderate
High
Very high
4 ppm
0
95
208
704+
5 ppm
0
30
61
342+
2 ppm
0
21
78
267+
AQI
26
Good
Hillsborough, California
Hillsborough, California
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0ppm
Ash
0ppm
Birch
0ppm
Elm
0ppm
Maple
0ppm
Mulberry
0ppm
Oak
0ppm
Pine
2ppm
Ragweed
Low
17ppm
Tree
13ppm
Weed
25ppm
Grass
Low
9ppm
Tree
7ppm
Weed
14ppm
Grass
Low
10ppm
Tree
7ppm
Weed
14ppm
Grass
Low
12ppm
Tree
9ppm
Weed
18ppm
Grass
Low
12ppm
Tree
9ppm
Weed
18ppm
Grass
Low
14ppm
Tree
8ppm
Weed
17ppm
Grass
Low
Ambee provides accurate pollen data for California, USA aligned with National Allergy Bureau (NAB) guidelines. By combining historical research, weather data, and machine learning, we deliver reliable, real-time insights with clear risk levels to help manage allergies effectively.
Disclaimer: While we strive for accuracy, individual responses to allergens may vary. Always consult a healthcare provider for personal advice.
Pollen updates for Hillsborough, California are available every hour.
Today, Hillsborough, California experiences a pollen risk categorized as low.
Yesterday, the pollen reading in Hillsborough, California showed moderate levels.
In Hillsborough, California the ragweed count today is 2 ppm, contributing to low allergy risks.
The oak pollen reading in Hillsborough, California today is 0 ppm.
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