Berwyn pollen forecast - today, tomorrow and the week ahead
Today (25 June) pollen in Berwyn is medium; grass is medium; cypress is low. Tomorrow (26 June 2026) levels are similar - grass declining. 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
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Berwyn's Cook County Illinois Chicago suburban setting features oak, maple, and elm as the main tree pollen sources, with exposure varying between the limited greener residential areas and the more built-up commercial corridors along Cermak Road. The Chicago metropolitan urban heat island extends the season slightly, while the flat, densely developed suburban landscape means limited local vegetation variation and the Ogden Avenue commercial corridor limits green space, meaning most pollen is carried in from surrounding residential areas.
Today - 25 June
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
None
0/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
Low
10/100
-
Grass (Poaceae):
Medium
43/100
-
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):
None
0/100
-
Grass (Poaceae):
Low
13/100
-
Willow (Salicaceae):
None
0/100
Frequently Asked Questions
Is pollen high in Berwyn right now?
On 25 June 2026, overall pollen levels in Berwyn are moderate. Grass is the main contributor to airborne pollen, while cypress remain at lower levels
Will pollen levels change in Berwyn tomorrow?
On 26 June 2026, pollen conditions in Berwyn will be different from today, with grass continuing to decline
Is pollen expected to decrease in Berwyn 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 Berwyn?
On 25 June 2026, Grass is the dominant pollen source in Berwyn. cypress are also present but at lower levels. hazel and willow are not currently active.
When is pollen season in Berwyn?
How often is the Berwyn pollen forecast updated?
The Berwyn pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Berwyn 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 Berwyn 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 Berwyn, 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: 25 Jun 2026, 09:01 CET (Data is updated four times daily.)
This page provides the latest public pollen forecast for Berwyn.
For long term forecasts and maps, see the Airmine app
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.