Waldorf pollen forecast - today, tomorrow and the week ahead

Today (16 July) pollen in Waldorf is low; grass and ragweed are low. Tomorrow (17 July 2026) levels are similar. Over the following five days grass and ragweed will increase. 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

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Waldorf's suburban setting in Charles County features oak, pine, and sweet gum as the main tree pollen sources in parks and along residential streets, with exposure varying between these green areas and the more built-up areas. Surrounding Maryland coastal plain woodland and farmland contribute substantial tree and grass pollen, while the flat, open landscape allows pollen to disperse readily across the area under prevailing southwesterly winds.

Today - 16 July

  • 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

  • Oak (Quercus):

    None

    0/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    None

    0/100

  • Ragweed (Ambrosia):

    Low

    2/100

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 - 17 July

  • 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

  • Oak (Quercus):

    None

    0/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    None

    0/100

  • Ragweed (Ambrosia):

    None

    0/100

Frequently Asked Questions

Is pollen high in Waldorf right now?

On 16 July 2026, overall pollen levels in Waldorf are low. Grass is the main contributor to airborne pollen, while ambrosia remain at lower levels

Will pollen levels change in Waldorf tomorrow?

On 17 July 2026, pollen conditions in Waldorf will be similar to today with no significant pollen expected.

Is pollen expected to decrease in Waldorf this week?

According to the five-day outlook, grass and ambrosia pollen levels will increase later in the week.

Which pollen types are currently active in Waldorf?

On 16 July 2026, Grass is the dominant pollen source in Waldorf. ambrosia are also present but at lower levels. artemisia, birch, cypress, oak, willow, and alder are not currently active.

When is pollen season in Waldorf?
Waldorf's pollen season opens with cedar and maple from late January, followed by oak and pine through March and April. Grass pollen peaks through May and June, with ragweed extending the season into October. The flat Maryland coastal plain landscape allows substantial pollen from surrounding woodland and farmland to disperse widely, while the humid subtropical climate supports an extended pollen season across the Charles County area.
How often is the Waldorf pollen forecast updated?

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

Does pollen in Waldorf 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 Waldorf 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 Waldorf, 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: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)

This page provides the latest public pollen forecast for Waldorf.

For long term forecasts and maps, see the Airmine app

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