Montréal pollen forecast — Marche Jean-Talon neighborhood

Today (9 August) pollen in Marche Jean-Talon, Montréal is medium; ragweed is medium; mugwort is low. Tomorrow (10 August 2026) levels are similar - ragweed remains medium. Over the following five days mugwort and ragweed will increase. 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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Marché Jean-Talon features plane and honey locust street trees as the main pollen sources, with exposure concentrated in this dense open-air market district in central-east Montréal with minimal overall greenery.

Today - 9 August

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    None

    0/100

  • Grass (Poaceae):

    None

    0/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Low

    5/100

  • Ragweed (Ambrosia):

    Medium

    29/100

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 - 10 August

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    None

    0/100

  • Grass (Poaceae):

    None

    0/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    None

    0/100

  • Ragweed (Ambrosia):

    Medium

    27/100

Other Landmarks in Montréal

Sports venues in Montréal

Frequently Asked Questions

Is pollen high in Montréal right now?

On 9 August 2026, overall pollen levels in Montréal are moderate. Ambrosia is the main contributor to airborne pollen, while artemisia remain at lower levels

Will pollen levels change in Montréal tomorrow?

On 10 August 2026, pollen conditions in Montréal will be different from today, with ambrosia at medium levels

Is pollen expected to decrease in Montréal this week?

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

Which pollen types are currently active in Montréal?

On 9 August 2026, Ambrosia is the dominant pollen source in Montréal. artemisia are also present but at lower levels. cypress and grass are not currently active.

When is pollen season in Montréal?
Home to open-air stalls and seasonal produce displays, Marche Jean-Talon experiences a fairly light pollen season, with limited tree canopy around the market keeping spring counts modest, though nearby Petite Italie's streetscape trees and small green spaces still bring in a trickle of pollen during peak bloom weeks.
How often is the Montréal pollen forecast updated?

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

Does pollen in Montréal 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 Montréal 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 Montréal, 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.

Check pollen in other popular cities:

Data provided by Airmine — Last update: 10 August 2026 at 02:34 CEST (Data is updated four times daily.)

This page provides the latest public pollen forecast for Marche Jean-Talon, Montréal.

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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.