Monterey Park pollen forecast - today, tomorrow and the week ahead
Today (9 August) pollen in Monterey Park is medium; mugwort and ragweed are medium; cypress and grass are low. Tomorrow (10 August 2026) levels are similar - grass remains low, mugwort remains medium, ragweed remains medium. Over the following five days cypress, grass, mugwort, and ragweed will increase. 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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Monterey Park's San Gabriel Valley setting features olive, Mexican fan palm, and coast live oak as the main tree pollen sources, with exposure varying between the hillside residential areas overlooking the valley and the more built-up commercial corridors along Garvey Avenue. The hilltop-to-valley topographic gradient creates distinct pollen exposure differences between the elevated residential and lower commercial areas, while the San Bernardino freeway corridor channels local airflows throughout.
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
31/100
-
Ragweed (Ambrosia):
Medium
31/100
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
2/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
Medium
26/100
-
Ragweed (Ambrosia):
Medium
27/100
Air quality in Monterey Park
View air qualityFrequently Asked Questions
Is pollen high in Monterey Park right now?
On 9 August 2026, overall pollen levels in Monterey Park are moderate. Ambrosia is the main contributor to airborne pollen, while artemisia, cypress, and grass remain at lower levels
Will pollen levels change in Monterey Park tomorrow?
On 10 August 2026, pollen conditions in Monterey Park will be different from today, with grass at low levels, ambrosia at medium levels, artemisia at medium levels
Is pollen expected to decrease in Monterey Park this week?
According to the five-day outlook, cypress, grass, ambrosia, and artemisia pollen levels will increase later in the week.
Which pollen types are currently active in Monterey Park?
On 9 August 2026, Ambrosia is the dominant pollen source in Monterey Park. artemisia, cypress, and grass are also present but at lower levels.
When is pollen season in Monterey Park?
How often is the Monterey Park pollen forecast updated?
The Monterey Park pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Monterey Park 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 Monterey Park 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 Monterey Park, 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: 10 August 2026 at 02:34 CEST (Data is updated four times daily.)
This page provides the latest public pollen forecast for Monterey Park.
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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.