Severn pollen forecast - today, tomorrow and the week ahead

Today (25 June) pollen in Severn is low; cypress and grass are low. Tomorrow (26 June 2026) levels are similar. Over the following five days cypress and grass 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

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

Severn's Anne Arundel County Maryland suburban setting features oak, tulip poplar, and sweetgum as the main tree pollen sources, with exposure varying between the wooded residential neighborhoods along the Severn Run and Marley Creek corridors and the more built-up commercial areas along Annapolis Road. The Severn Run Natural Environment Area provides particularly significant local woodland pollen, while the rolling Anne Arundel topography creates modest pollen gradients throughout the season.

Today - 25 June

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    Low

    14/100

  • Grass (Poaceae):

    Low

    23/100

  • 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

    2/100

  • Grass (Poaceae):

    Low

    10/100

  • Willow (Salicaceae):

    None

    0/100

Frequently Asked Questions

Is pollen high in Severn right now?

On 25 June 2026, overall pollen levels in Severn are low. Cypress is the main contributor to airborne pollen, while grass remain at lower levels

Will pollen levels change in Severn tomorrow?

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

Is pollen expected to decrease in Severn this week?

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

Which pollen types are currently active in Severn?

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

When is pollen season in Severn?
Severn'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 Severn River corridor channels airflows, while the Chesapeake Bay proximity moderates temperatures and the warm mid-Atlantic climate advances the season throughout.
How often is the Severn pollen forecast updated?

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

Does pollen in Severn 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 Severn 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 Severn, 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?

Atlanta Boston Chicago Dallas Houston Los Angeles Miami New York Philadelphia Washington

Check pollen in other popular cities:

Sydney Rio de Janeiro Copenhagen Paris Athens Denpasar Rome Cape Town Barcelona London Los Angeles New York

Data provided by Airmine — Last update: 25 Jun 2026, 09:00 CET (Data is updated four times daily.)

This page provides the latest public pollen forecast for Severn.

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.