Chicago Northwest KOA pollen forecast - today, tomorrow and the week ahead

Today (30 August) pollen in Chicago Northwest KOA is high; grass and ragweed are high; mugwort is moderate. Tomorrow (31 August 2026) levels are similar. Over the following five days grass, mugwort, and ragweed will decrease. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.

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Here, nearby, the water's edge is thick with hazel and willow, whose pollen spreads readily in early spring. Located not far from here, this area has oak and birch trees, with birch pollen especially potent during its brief spring window. Local readings for the surrounding area tend to follow this same general pattern.

Today - 30 August

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    None

    0/100

  • Grass (Poaceae):

    High

    55/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Moderate

    31/100

  • Ragweed (Ambrosia):

    High

    70/100

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 - 31 August

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    None

    0/100

  • Grass (Poaceae):

    High

    55/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Moderate

    29/100

  • Ragweed (Ambrosia):

    High

    70/100

Air quality in Chicago Northwest KOA

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Frequently Asked Questions

Is pollen high in Chicago Northwest KOA right now?

On 30 August 2026, overall pollen levels in Chicago Northwest KOA are high. Ambrosia is the main contributor to airborne pollen, while grass and artemisia remain at lower levels

Will pollen levels change in Chicago Northwest KOA tomorrow?

On 31 August 2026, pollen conditions in Chicago Northwest KOA will be similar to today, with ambrosia at high levels, artemisia at moderate levels, grass at high levels

Is pollen expected to decrease in Chicago Northwest KOA this week?

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

Which pollen types are currently active in Chicago Northwest KOA?

On 30 August 2026, Ambrosia is the dominant pollen source in Chicago Northwest KOA. grass and artemisia are also present but at lower levels. cypress are not currently active.

When is pollen season in Chicago Northwest KOA?
Near the bank, hazel and willow lead the seasonal calendar, building through the tail end of winter into March. Once hazel fades, oak and birch in the woods carry the season forward, usually peaking from April into May. Grass pollen climbs toward a June peak, followed by ragweed's own peak stretch from mid-August into October.
How often is the Chicago Northwest KOA pollen forecast updated?

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

Does pollen in Chicago Northwest KOA 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 Chicago Northwest KOA 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 Chicago Northwest KOA, 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: 30 August 2026 at 14:32 CEST (Data is updated four times daily.)

This page provides the latest public pollen forecast for Chicago Northwest KOA.

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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.

Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.