Today's live pollen count in Ontario, California
Stay updated with real-time pollen levels in Ontario, California. Use our interactive maps and forecasts to manage allergies and confidently plan outdoor activities.
Live Pollen Level
Very high
Ontario, 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 Ontario, California
Low
Moderate
High
Very high
Tree pollen
3875 ppm
0
95
208
704+
Grass pollen
0 ppm
0
30
61
342+
Weed pollen
0 ppm
0
21
78
267+
AQI
51
Moderate
Ontario, California
Ontario, California
Scroll To Live Pollen Map
Track live Ontario, California pollen forecast and history
Ontario Loading...
Different types of pollen concentrations in Ontario, California
65ppm
Ash
575ppm
Birch
414ppm
Elm
36ppm
Maple
575ppm
Mulberry
1681ppm
Oak
43ppm
Pine
0ppm
Ragweed
Ontario, California allergy map: Track pollen near you
Pollen count in nearby cities
Upland, California
High
211ppm
Tree
0ppm
Weed
0ppm
Grass
Chino, California
High
235ppm
Tree
0ppm
Weed
0ppm
Grass
Rancho Cucamonga, California
Moderate
206ppm
Tree
0ppm
Weed
0ppm
Grass
Claremont, California
High
630ppm
Tree
0ppm
Weed
0ppm
Grass
Pomona, California
High
380ppm
Tree
0ppm
Weed
0ppm
Grass
Chino Hills, California
High
472ppm
Tree
0ppm
Weed
0ppm
Grass
Allergy tips for Ontario, California
Very high
- Ensure a pollen-free home in Ontario, California by sealing it off from outdoor allergens.
- Ensure better pollen protection by wearing an N95 mask when you need to go outdoors in Ontario, California.
- Talk to your doctor in Ontario, California about stronger allergy treatments if symptoms worsen.
- Pick a day with minimal pollen in Ontario, California for your gardening and outdoor tasks.
- Keep an eye on weather forecasts in Ontario, California to take advantage of rain-clearing pollen.
- Enhance indoor and vehicle air quality in Ontario, California by maintaining clean, updated air filters.
- Reduce outdoor exercise in Ontario, California to manage and alleviate allergy symptoms.
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 Ontario, California get updated?
Pollen updates for Ontario, California are available every hour.
What is the pollen risk in Ontario, California today?
Today, Ontario, California experiences a pollen risk categorized as very high.
What was the pollen reading in Ontario, California yesterday?
Yesterday, the pollen reading in Ontario, California showed very high levels.
What's the ragweed level in Ontario, California today?
In Ontario, California the ragweed count today is 0 ppm, contributing to low allergy risks.
What is the oak pollen reading today in Ontario, California?
The oak pollen reading in Ontario, California today is 1681 ppm.
All Rights Reserved © Ambee Inc. 2025