Innisfil pollen forecast - today, tomorrow and the week ahead

Today (9 August) pollen in Innisfil is low; mugwort and ragweed are low. Tomorrow (10 August 2026) levels are similar - mugwort increasing, ragweed increasing, grass at low levels. 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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Located just outside the immediate area, this area has hazel and willow line the water's edge, releasing pollen that carries easily on the wind. Here, within the neighborhood, a wooded area built around oak and birch, both contributing heavily to the region's spring pollen totals. Small shifts in elevation or soil type can move these figures a little either way.

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

    22/100

  • Ragweed (Ambrosia):

    Low

    25/100

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

    7/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Medium

    38/100

  • Ragweed (Ambrosia):

    Medium

    42/100

Air quality in Innisfil

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Frequently Asked Questions

Is pollen high in Innisfil right now?

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

Will pollen levels change in Innisfil tomorrow?

On 10 August 2026, pollen conditions in Innisfil will be different from today, with grass at low levels and ambrosia, artemisia increasing

Is pollen expected to decrease in Innisfil 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 Innisfil?

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

When is pollen season in Innisfil?
Near the bank, hazel and willow lead the seasonal calendar, starting well before the main spring rush, topping out around March. Oak and birch nearby take over the pollen calendar through mid-spring, reaching its high point through April and into May. Grass pollen takes over next, building to a peak around June, before ragweed's late-summer surge carries the season into October.
How often is the Innisfil pollen forecast updated?

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

Does pollen in Innisfil 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 Innisfil 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 Innisfil, 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.

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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 Innisfil.

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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.