Grand Blanc pollen forecast - today, tomorrow and the week ahead

Today (9 August) pollen in Grand Blanc is low; ragweed is low. Tomorrow (10 August 2026) levels are similar - ragweed increasing, grass at low levels, mugwort at low levels. Over the following five days grass and ragweed will increase; mugwort will decrease. 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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In Grand Blanc, hazel and willow crowd the edge of the nearby bank, releasing pollen on the breeze. Near Grand Blanc, a local park tops up the local grass and ragweed count with lawn grass and plantings.

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):

    None

    0/100

  • Ragweed (Ambrosia):

    Low

    16/100

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

    10/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Low

    16/100

  • Ragweed (Ambrosia):

    Medium

    38/100

Air quality in Grand Blanc

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Frequently Asked Questions

Is pollen high in Grand Blanc right now?

On 9 August 2026, overall pollen levels in Grand Blanc are low. Ambrosia is the main contributor to airborne pollen

Will pollen levels change in Grand Blanc tomorrow?

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

Is pollen expected to decrease in Grand Blanc this week?

According to the five-day outlook, artemisia pollen levels are expected to gradually decrease, while ambrosia and grass pollen will increase, suggesting mixed conditions later in the week.

Which pollen types are currently active in Grand Blanc?

On 9 August 2026, Ambrosia is the dominant pollen source in Grand Blanc. artemisia, cypress, and grass are not currently active.

When is pollen season in Grand Blanc?
Hazel and willow along the shoreline lead the season, cresting in February or March. By June, grass pollen hits its yearly high. Ragweed follows as the top allergen through October. Warmer or wetter years can push these peaks earlier or later.
How often is the Grand Blanc pollen forecast updated?

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

Does pollen in Grand Blanc 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 Grand Blanc 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 Grand Blanc, 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: 10 August 2026 at 02:34 CEST (Data is updated four times daily.)

This page provides the latest public pollen forecast for Grand Blanc.

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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.