Severn pollen forecast - today, tomorrow and the week ahead
Today (30 August) pollen in Severn is high; ragweed is high; grass and mugwort are moderate. Tomorrow (31 August 2026) levels are similar - grass remains moderate, ragweed remains high, mugwort declining. Over the following five days grass and ragweed will increase; mugwort will decrease. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.
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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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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 - 30 August
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
None
0/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
None
0/100
-
Grass (Poaceae):
Moderate
39/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
Moderate
32/100
-
Ragweed (Ambrosia):
High
70/100
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 - 31 August
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
None
0/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
None
0/100
-
Grass (Poaceae):
Moderate
26/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
Low
18/100
-
Ragweed (Ambrosia):
High
70/100
Air quality in Severn
View air qualityFrequently Asked Questions
Is pollen high in Severn right now?
On 30 August 2026, overall pollen levels in Severn are high. Ambrosia is the main contributor to airborne pollen, while grass and artemisia remain at lower levels
Will pollen levels change in Severn tomorrow?
On 31 August 2026, pollen conditions in Severn will be different from today, with grass at moderate levels, ambrosia at high levels and artemisia continuing to decline
Is pollen expected to decrease in Severn this week?
According to the five-day outlook, artemisia pollen levels are expected to gradually decrease, while grass and ambrosia pollen will increase, suggesting mixed conditions later in the week.
Which pollen types are currently active in Severn?
On 30 August 2026, Ambrosia is the dominant pollen source in Severn. grass and artemisia are also present but at lower levels. cypress are not currently active.
When is pollen season in Severn?
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?
Check pollen in other popular cities:
Data provided by Airmine — Last update: 30 August 2026 at 20:26 CEST (Data is updated four times daily.)
This page provides the latest public pollen forecast for Severn.
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Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.