Poway pollen forecast - today, tomorrow and the week ahead

Today (30 August) pollen in Poway is moderate; ragweed is moderate; grass is low. Tomorrow (31 August 2026) levels are similar - grass remains low, ragweed remains moderate, mugwort at low levels. Over the following five days 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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Poway HS's Baseball Diamond sits in the Poway suburban landscape of northern San Diego County, with oak, eucalyptus, and coastal sage scrub as the main surrounding pollen sources. Surrounding chaparral and the inland hills contribute substantial grass and scrub pollen, while the Mediterranean California climate advances the season and inland canyon winds can periodically concentrate pollen throughout this north San Diego suburban school.

Today - 30 August

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    None

    0/100

  • Grass (Poaceae):

    Low

    18/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    None

    0/100

  • Ragweed (Ambrosia):

    Moderate

    33/100

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 - 31 August

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    None

    0/100

  • Grass (Poaceae):

    Low

    23/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Low

    2/100

  • Ragweed (Ambrosia):

    Moderate

    39/100

Air quality in Poway

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Frequently Asked Questions

Is pollen high in Poway right now?

On 30 August 2026, overall pollen levels in Poway are moderate. Ambrosia is the main contributor to airborne pollen, while grass remain at lower levels

Will pollen levels change in Poway tomorrow?

On 31 August 2026, pollen conditions in Poway will be different from today, with ambrosia at moderate levels, artemisia at low levels, grass at low levels

Is pollen expected to decrease in Poway 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 Poway?

On 30 August 2026, Ambrosia is the dominant pollen source in Poway. grass are also present but at lower levels. artemisia and cypress are not currently active.

When is pollen season in Poway?
Poway HS's Baseball Diamond's pollen season lines up with the rest of Poway, starting with olive and acacia in January then eucalyptus builds through February. Grass pollen builds through March and April, and sagebrush and mugwort extend exposure into early autumn. Mild year-round temperatures push the pollen calendar earlier than in most of the country throughout the year.
How often is the Poway pollen forecast updated?

The Poway pollen forecast is updated four times daily. See the timestamp below for the most recent update.

Does pollen in Poway 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 Poway 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 Poway, 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?

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Check pollen in other popular cities:

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Data provided by Airmine — Last update: 30 August 2026 at 08:36 CEST (Data is updated four times daily.)

This page provides the latest public pollen forecast for Poway.

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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.

Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.