York pollen forecast - today, tomorrow and the week ahead

Today (25 June) pollen in York 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

York's parks, including Kiwanis Lake Park and the Codorus Creek corridor, feature oak, maple, and ash as the main tree pollen sources, with exposure varying between these green areas and the more built-up city centre. Surrounding Pennsylvania farmland and the wooded South Mountain ridges contribute substantial tree and grass pollen, while the valley setting channels airflows and concentrates pollen across the city.

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):

    Medium

    38/100

  • 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

    19/100

  • Willow (Salicaceae):

    None

    0/100

Frequently Asked Questions

Is pollen high in York right now?

On 25 June 2026, overall pollen levels in York are moderate. Grass is the main contributor to airborne pollen, while cypress remain at lower levels

Will pollen levels change in York tomorrow?

On 26 June 2026, pollen conditions in York will be different from today, with grass continuing to decline

Is pollen expected to decrease in York 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 York?

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

When is pollen season in York?
York's pollen season in Pennsylvania opens with maple and elm from late February, followed by oak and ash through April and May. Grass pollen peaks through June and July, with ragweed contributing into September. The Codorus Creek valley channels airflows and concentrates pollen, while surrounding Pennsylvania farmland and the wooded South Mountain ridges contribute substantial tree and grass pollen under prevailing westerly winds.
How often is the York pollen forecast updated?

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

Does pollen in York 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 York 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 York, 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, 09:02 CET (Data is updated four times daily.)

This page provides the latest public pollen forecast for York.

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.