Concord pollen forecast - today, tomorrow and the week ahead

Today (25 June) pollen in Concord is medium; grass is medium; cypress is low. Tomorrow (26 June 2026) levels are similar - cypress remains low, grass declining. Over the following five days cypress and grass will decrease. 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

Concord's parks, including White Park and the Merrimack River corridor, feature oak, birch, and maple as the main tree pollen sources, with exposure varying between these green areas and the more built-up city centre. Surrounding New Hampshire woodland and farmland contribute substantial tree and grass pollen, while the inland valley setting means rainfall is more frequent than on the coast, providing regular interruptions to exposure.

Today - 25 June

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    Low

    18/100

  • Grass (Poaceae):

    Medium

    27/100

  • 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

    12/100

  • Grass (Poaceae):

    Low

    19/100

  • Willow (Salicaceae):

    None

    0/100

Frequently Asked Questions

Is pollen high in Concord right now?

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

Will pollen levels change in Concord tomorrow?

On 26 June 2026, pollen conditions in Concord will be different from today, with cypress at low levels and grass continuing to decline

Is pollen expected to decrease in Concord this week?

According to the five-day outlook, cypress and grass pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.

Which pollen types are currently active in Concord?

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

When is pollen season in Concord?
Concord's pollen season in New Hampshire opens with maple and birch from late March, slightly later than southern New England cities due to the cooler inland climate. Oak follows through April and May, with grass peaking through June and July. Ragweed extends the season into September. The Merrimack River valley channels airflows, while surrounding New Hampshire woodland and farmland contribute substantial tree and grass pollen.
How often is the Concord pollen forecast updated?

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

Does pollen in Concord 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 Concord 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 Concord, 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 Concord.

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.