Today's live pollen count in Hillsborough, California
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.
Allergies right now in Hillsborough, California
Low
Moderate
High
Very high
Tree pollen
59 ppm
0
95
208
704+
Grass pollen
10 ppm
0
30
61
342+
Weed pollen
4 ppm
0
21
78
267+
AQI
27
Good
Hillsborough, California
Hillsborough, California
Scroll To Live Pollen Map
Track live Hillsborough, California pollen forecast and history
Hillsborough Loading...
Different types of pollen concentrations in Hillsborough, California
1ppm
Ash
2ppm
Birch
5ppm
Elm
1ppm
Maple
5ppm
Mulberry
10ppm
Oak
7ppm
Pine
4ppm
Ragweed
Hillsborough, California allergy map: Track pollen near you
Pollen count in nearby cities
Burlingame, California
Low
94ppm
Tree
9ppm
Weed
18ppm
Grass
Millbrae, California
Low
58ppm
Tree
4ppm
Weed
10ppm
Grass
San Mateo, California
Moderate
102ppm
Tree
7ppm
Weed
18ppm
Grass
San Bruno, California
Moderate
115ppm
Tree
11ppm
Weed
23ppm
Grass
South San Francisco, California
Moderate
115ppm
Tree
11ppm
Weed
23ppm
Grass
Foster City, California
Low
55ppm
Tree
4ppm
Weed
9ppm
Grass
Allergy tips for Hillsborough, California
Low
- It's a great day to be outdoors in Hillsborough, California with low pollen levels.
- Let the breeze in by opening windows at home or work in Hillsborough, California, ensuring a comfortable environment without allergies.
- Make the most of this low-pollen phase by spending time lounging in your outdoor spaces in Hillsborough, California.
- Make the most of this low-pollen phase by spending time lounging in your outdoor spaces in Hillsborough, California.
- Take advantage of this low-pollen period to plan picnics and social gatherings in Hillsborough, California.
How accurate is California, USA pollen data?
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.
Frequently asked questions
How frequently does the pollen data for Hillsborough, California get updated?
Pollen updates for Hillsborough, California are available every hour.
What is the pollen risk in Hillsborough, California today?
Today, Hillsborough, California experiences a pollen risk categorized as low.
What was the pollen reading in Hillsborough, California yesterday?
Yesterday, the pollen reading in Hillsborough, California showed high levels.
What's the ragweed level in Hillsborough, California today?
In Hillsborough, California the ragweed count today is 4 ppm, contributing to low allergy risks.
What is the oak pollen reading today in Hillsborough, California?
The oak pollen reading in Hillsborough, California today is 10 ppm.
All Rights Reserved © Ambee Inc. 2025