Haverford pollen forecast - today, tomorrow and the week ahead

Today (9 August) pollen in Haverford is low; mugwort and ragweed are low. Tomorrow (10 August 2026) levels are similar - mugwort remains low, ragweed increasing, grass 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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Haverford's Montgomery County Pennsylvania Philadelphia suburban setting features oak, tulip poplar, and maple as the main tree pollen sources, with exposure varying between the extensively wooded Haverford College arboretum campus and the more built-up residential and commercial corridors along Lancaster Avenue. The Haverford College arboretum is a particularly significant local tree pollen source, while the Cobbs Creek corridor provides additional woodland pollen and the wooded Main Line setting contributes locally high tree pollen throughout spring.

Today - 9 August

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    None

    0/100

  • Grass (Poaceae):

    None

    0/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Low

    1/100

  • Ragweed (Ambrosia):

    Low

    10/100

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

    7/100

  • Ragweed (Ambrosia):

    Medium

    40/100

Air quality in Haverford

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Frequently Asked Questions

Is pollen high in Haverford right now?

On 9 August 2026, overall pollen levels in Haverford are low. Ambrosia is the main contributor to airborne pollen, while artemisia remain at lower levels

Will pollen levels change in Haverford tomorrow?

On 10 August 2026, pollen conditions in Haverford will be different from today, with artemisia at low levels, grass at low levels and ambrosia increasing

Is pollen expected to decrease in Haverford 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 Haverford?

On 9 August 2026, Ambrosia is the dominant pollen source in Haverford. artemisia are also present but at lower levels. cypress and grass are not currently active.

When is pollen season in Haverford?
Haverford's Philadelphia suburban setting in Pennsylvania produces a season opening in late February with cedar and elm before oak peaks through April. Grass from surrounding Pennsylvania farmland peaks through May and June before mugwort and nettle extend exposure into September. The Darby Creek corridor channels airflows, while the moderate mid-Atlantic climate advances the season compared to more northern cities throughout this affluent Main Line suburban township.
How often is the Haverford pollen forecast updated?

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

Does pollen in Haverford 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 Haverford 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 Haverford, 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.

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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 Haverford.

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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.