Yorba Linda pollen forecast - today, tomorrow and the week ahead
Today (9 August) pollen in Yorba Linda is medium; mugwort and ragweed are medium; cypress and grass are low. Tomorrow (10 August 2026) levels are similar - grass remains low, ragweed remains medium, mugwort declining. Over the following five days grass, mugwort, and ragweed will increase; cypress will remain stable. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Yorba Linda's Orange County foothill setting features olive, chaparral scrub oak, and Torrey pine as the main tree pollen sources, with exposure varying between the chaparral-covered Chino Hills and the more built-up residential and commercial corridors along Yorba Linda Boulevard. The Santa Ana River corridor provides locally significant green space, while the foothill-valley gradient creates distinct pollen exposure differences between the hillside and valley floor areas.
Today - 9 August
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
None
0/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
Low
3/100
-
Grass (Poaceae):
Low
7/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
Medium
28/100
-
Ragweed (Ambrosia):
Medium
32/100
High pollen levels may trigger sneezing, itchy eyes, and congestion. Airmine's neighbourhood estimates use satellites to map local vegetation and a statistical prediction model, updated four times daily.
Tomorrow - 10 August
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
None
0/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
None
0/100
-
Grass (Poaceae):
Low
3/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
Low
22/100
-
Ragweed (Ambrosia):
Medium
27/100
Air quality in Yorba Linda
View air qualityFrequently Asked Questions
Is pollen high in Yorba Linda right now?
On 9 August 2026, overall pollen levels in Yorba Linda are moderate. Ambrosia is the main contributor to airborne pollen, while artemisia, cypress, and grass remain at lower levels
Will pollen levels change in Yorba Linda tomorrow?
On 10 August 2026, pollen conditions in Yorba Linda will be different from today, with ambrosia at medium levels, grass at low levels and artemisia continuing to decline
Is pollen expected to decrease in Yorba Linda this week?
According to the five-day outlook, ambrosia, artemisia, and grass pollen levels will increase later in the week.
Which pollen types are currently active in Yorba Linda?
On 9 August 2026, Ambrosia is the dominant pollen source in Yorba Linda. artemisia, cypress, and grass are also present but at lower levels.
When is pollen season in Yorba Linda?
How often is the Yorba Linda pollen forecast updated?
The Yorba Linda pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Yorba Linda come from nearby or far away?
Studies show that most pollen exposure (often 70–90%) comes from nearby sources, such as local trees and vegetation. A good pollen forecast therefore depends on accurately representing local vegetation. Pollen can travel long distances, but this usually matters only early in the season or during specific wind events.
Are pollen levels in Yorba Linda based on measurements or forecasts?
Pollen data is often misunderstood. Most "pollen levels" are not real-time measurements, but forecasts.
Direct pollen measurements are typically delayed by 1-2 days because they require manual analysis. To show current conditions in Yorba Linda, modern forecasts combine recent measurements, weather data, and information about local vegetation.
This allows us to estimate pollen levels for today and the coming days, not just report the past.
Airmine’s atmospheric monitoring platform was developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team, using satellite and Earth observation technologies to improve emissions monitoring.
Want to see pollen forecasts for other cities in United States?
Check pollen in other popular cities:
Data provided by Airmine — Last update: 9 August 2026 at 20:27 CEST (Data is updated four times daily.)
This page provides the latest public pollen forecast for Yorba Linda.
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Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.