Leesburg pollen forecast - today, tomorrow and the week ahead

Today (1 July) pollen in Leesburg is low; cypress and grass are low. Tomorrow (2 July 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

Leesburg's parks, including Ida Lee Park and the Catoctin Creek corridor, feature oak, maple, and ash as the main tree pollen sources, with exposure varying between these green areas and the more built-up town centre. Surrounding Virginia Piedmont farmland and the wooded foothills of the Blue Ridge contribute substantial tree and grass pollen, while the valley setting channels airflows and concentrates pollen across the area.

Today - 1 July

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    Low

    1/100

  • Grass (Poaceae):

    Low

    3/100

  • 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 - 2 July

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    Low

    4/100

  • Grass (Poaceae):

    Low

    6/100

  • Willow (Salicaceae):

    None

    0/100

Air quality in Leesburg

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Frequently Asked Questions

Is pollen high in Leesburg right now?

On 1 July 2026, overall pollen levels in Leesburg are low. Cypress is the main contributor to airborne pollen, while grass remain at lower levels

Will pollen levels change in Leesburg tomorrow?

On 2 July 2026, pollen conditions in Leesburg will be similar to today, with cypress at low levels, grass at low levels

Is pollen expected to decrease in Leesburg 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 Leesburg?

On 1 July 2026, Cypress is the dominant pollen source in Leesburg. grass are also present but at lower levels. hazel and willow are not currently active.

When is pollen season in Leesburg?
Leesburg's pollen season in Virginia opens with cedar and maple from late January, followed by oak and ash through March and April. Grass pollen peaks through May and June, with ragweed extending the season into October. The Catoctin Creek valley and the surrounding Blue Ridge Mountain foothills channel airflows and concentrate pollen, while surrounding Virginia Piedmont farmland contributes substantial grass and tree pollen.
How often is the Leesburg pollen forecast updated?

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

Does pollen in Leesburg 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 Leesburg 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 Leesburg, 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: 1 Jul 2026, 13:04 CET (Data is updated four times daily.)

This page provides the latest public pollen forecast for Leesburg.

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.