Towson pollen forecast - today, tomorrow and the week ahead

Today (16 July) pollen in Towson is medium; grass is medium; ragweed is low. Tomorrow (17 July 2026) levels are similar - ragweed remains low, grass declining. Over the following five days ragweed will increase; grass will decrease. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.

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Towson's Baltimore County Maryland suburban setting features oak, tulip poplar, and maple as the main tree pollen sources, with exposure varying between the wooded Gunpowder Falls corridor residential areas and the more built-up downtown commercial and Towson University areas. The Gunpowder Falls State Park corridor to the north is a particularly significant local tree pollen source, while the Towson University campus woodland creates additional distinct pollen gradients throughout the season.

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):

    Medium

    47/100

  • Oak (Quercus):

    None

    0/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    None

    0/100

  • Ragweed (Ambrosia):

    Low

    25/100

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):

    Low

    22/100

  • Oak (Quercus):

    None

    0/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    None

    0/100

  • Ragweed (Ambrosia):

    Low

    1/100

Air quality in Towson

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Frequently Asked Questions

Is pollen high in Towson right now?

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

Will pollen levels change in Towson tomorrow?

On 17 July 2026, pollen conditions in Towson will be different from today, with ambrosia at low levels and grass continuing to decline

Is pollen expected to decrease in Towson this week?

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

Which pollen types are currently active in Towson?

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

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

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

Does pollen in Towson 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 Towson 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 Towson, 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 05:36 CEST (Data is updated four times daily.)

This page provides the latest public pollen forecast for Towson.

For long term forecasts and maps, see the Airmine app

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