College Park pollen forecast - today, tomorrow and the week ahead

Today (16 July) pollen in College Park 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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College Park's setting on suburban terrain just outside Washington DC supports oak and maple canopy, cherry trees, and landscaped campus lawns as the leading local vegetation, all factoring into the pollen count through the year. Seasonal timing here follows the broader regional pattern typical of this part of the country. Residents who spend time outdoors around College Park typically notice the shift as each season turns over.

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

    21/100

  • Oak (Quercus):

    None

    0/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    None

    0/100

  • Ragweed (Ambrosia):

    Low

    3/100

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

Air quality in College Park

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Frequently Asked Questions

Is pollen high in College Park right now?

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

Will pollen levels change in College Park tomorrow?

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

Is pollen expected to decrease in College Park 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 College Park?

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

When is pollen season in College Park?
College Park sees its pollen season open with cedar and elm from late February with oak following close behind through April. Peak grass pollen arrives in May and June, and ragweed and mugwort extend the weed season into September. Humid summers in the mid-Atlantic favor a longer weed pollen tail into early autumn.
How often is the College Park pollen forecast updated?

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

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

This page provides the latest public pollen forecast for College Park.

For long term forecasts and maps, see the Airmine app

Download on the App Store Get it on Google Play

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