McLean pollen forecast - today, tomorrow and the week ahead

Today (25 June) pollen in McLean is medium; grass is medium; cypress is low. Tomorrow (26 June 2026) levels are similar. Over the following five days cypress will increase; grass will decrease. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.

For long term forecasts and maps, see the Airmine app

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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team

McLean's Fairfax County Virginia affluent suburban setting features oak, tulip poplar, and maple as the main tree pollen sources, with one of the most extensive residential tree canopies in the Washington DC metropolitan area. Exposure varies between the densely wooded neighborhoods near the Potomac River corridor and the more built-up commercial areas along Chain Bridge Road, while the Great Falls Park woodland contributes particularly significant regional tree pollen throughout spring.

Today - 25 June

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    Low

    16/100

  • Grass (Poaceae):

    Medium

    39/100

  • Willow (Salicaceae):

    None

    0/100

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 - 26 June

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    Low

    6/100

  • Grass (Poaceae):

    Medium

    27/100

  • Willow (Salicaceae):

    None

    0/100

Frequently Asked Questions

Is pollen high in McLean right now?

On 25 June 2026, overall pollen levels in McLean are moderate. Grass is the main contributor to airborne pollen, while cypress remain at lower levels

Will pollen levels change in McLean tomorrow?

On 26 June 2026, pollen conditions in McLean will be similar to today, with cypress at low levels, grass at medium levels

Is pollen expected to decrease in McLean this week?

According to the five-day outlook, grass pollen levels are expected to gradually decrease, while cypress pollen will increase, suggesting mixed conditions later in the week.

Which pollen types are currently active in McLean?

On 25 June 2026, Grass is the dominant pollen source in McLean. cypress are also present but at lower levels. hazel and willow are not currently active.

When is pollen season in McLean?
McLean's Northern Virginia suburban setting produces a season opening in late February with cedar and elm before oak peaks through April. Grass from surrounding Virginia and Maryland farmland peaks through May and June before mugwort and nettle extend exposure into September. The Potomac River corridor channels airflows, while the warm mid-Atlantic climate and the Washington DC urban heat island advance the season slightly throughout.
How often is the McLean pollen forecast updated?

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

Does pollen in McLean 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 McLean 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 McLean, 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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Data provided by Airmine — Last update: 25 Jun 2026, 09:02 CET (Data is updated four times daily.)

This page provides the latest public pollen forecast for McLean.

For long term forecasts and maps, see the Airmine app

Download on the App Store Get it on Google Play

Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team

Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.