South Haven pollen forecast - today, tomorrow and the week ahead

Today (9 August) pollen in South Haven is medium; ragweed is medium; mugwort is low. Tomorrow (10 August 2026) levels are similar - mugwort increasing, ragweed increasing, grass at low levels. Over the following five days grass and mugwort will decrease; ragweed will remain stable. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.

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The vegetation around South Haven, on the mouth of the Black River on Lake Michigan, is dominated by blueberry farmland and dune grass, with oak-hickory forest adding further seasonal pollen exposure. Seasonal timing here follows the broader regional pattern typical of this part of the country. Residents who spend time outdoors around South Haven typically notice the shift as each season turns over.

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

    1/100

  • Ragweed (Ambrosia):

    Medium

    28/100

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

    17/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Medium

    29/100

  • Ragweed (Ambrosia):

    High

    56/100

Air quality in South Haven

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Frequently Asked Questions

Is pollen high in South Haven right now?

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

Will pollen levels change in South Haven tomorrow?

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

Is pollen expected to decrease in South Haven this week?

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

Which pollen types are currently active in South Haven?

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

When is pollen season in South Haven?
South Haven's pollen season opens with maple and elm from March with oak following close behind through April. Grass pollen then peaks through May and June, and a late-summer ragweed peak runs into September. A humid continental climate drives a sharp spring tree peak and an equally distinct late-summer ragweed run.
How often is the South Haven pollen forecast updated?

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

Does pollen in South Haven 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 South Haven 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 South Haven, 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 South Haven.

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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.