Stay updated with real-time pollen levels in Foster City, California. Use our interactive maps and forecasts to manage allergies and confidently plan outdoor activities.
Live Pollen Level
Low
Foster City, 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
13 ppm
0
95
208
704+
26 ppm
0
30
61
342+
13 ppm
0
21
78
267+
AQI
28
Good
Foster City, California
Foster City, California
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0ppm
Ash
0ppm
Birch
0ppm
Elm
0ppm
Maple
1ppm
Mulberry
0ppm
Oak
0ppm
Pine
13ppm
Ragweed
Low
7ppm
Tree
5ppm
Weed
11ppm
Grass
Moderate
31ppm
Tree
23ppm
Weed
46ppm
Grass
Low
4ppm
Tree
4ppm
Weed
9ppm
Grass
Moderate
24ppm
Tree
24ppm
Weed
45ppm
Grass
Low
4ppm
Tree
4ppm
Weed
9ppm
Grass
Moderate
33ppm
Tree
25ppm
Weed
49ppm
Grass
Low

Ambee’s pollen data for California, USA is grounded in National Allergy Bureau (NAB) guidelines, ensuring accuracy with real-time updates. Our models incorporate historical patterns, weather, and machine learning to provide trusted pollen forecasts and risk levels for effective allergy control.
Disclaimer: While we strive for accuracy, individual responses to allergens may vary. Always consult a healthcare provider for personal advice.
Pollen data for Foster City, California is updated on an hourly basis.
In Foster City, California, today's pollen risk is reported as low.
Yesterday, Foster City, California recorded a pollen level of moderate.
The ragweed count in Foster City, California today is 13 ppm, which is low.
The current oak pollen count in Foster City, California today is 0 ppm right now.
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