Sorel-Tracy pollen forecast - today, tomorrow and the week ahead

Today (9 August) pollen in Sorel-Tracy is medium; ragweed is medium; grass and mugwort are low. Tomorrow (10 August 2026) levels are similar. Over the following five days grass, 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

Follow your pollen exposure and performance with the free Airmine–Strava integration. See your pollen and air quality exposure for every Strava activity.

Sorel-Tracy's St. Lawrence and Richelieu River confluence setting features maple, oak, and ash as the main tree pollen sources, with exposure varying between riverside greenery and the built-up industrial river-town centre.

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):

    Low

    20/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Low

    12/100

  • Ragweed (Ambrosia):

    Medium

    32/100

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):

    Low

    14/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Low

    6/100

  • Ragweed (Ambrosia):

    Medium

    27/100

Air quality in Sorel-Tracy

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Frequently Asked Questions

Is pollen high in Sorel-Tracy right now?

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

Will pollen levels change in Sorel-Tracy tomorrow?

On 10 August 2026, pollen conditions in Sorel-Tracy will be similar to today, with ambrosia at medium levels, artemisia at low levels, grass at low levels

Is pollen expected to decrease in Sorel-Tracy 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 Sorel-Tracy?

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

When is pollen season in Sorel-Tracy?
Sitting where the Richelieu River meets the Saint Lawrence, Sorel-Tracy experiences a river-confluence pollen season, with floodplain marsh and forest driving a solid spring tree bloom, while the surrounding lowland farmland sustains a fairly strong grass and ragweed presence through late summer each year.
How often is the Sorel-Tracy pollen forecast updated?

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

Does pollen in Sorel-Tracy 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 Sorel-Tracy 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 Sorel-Tracy, 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: 9 August 2026 at 20:27 CEST (Data is updated four times daily.)

This page provides the latest public pollen forecast for Sorel-Tracy.

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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.