River Grove pollen forecast - today, tomorrow and the week ahead

Today (30 August) pollen in River Grove is high; ragweed is high; grass is moderate; mugwort is low. Tomorrow (31 August 2026) levels are similar - grass remains moderate, ragweed remains high, mugwort increasing. 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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Located close to this spot, this area has the nearest stream or river hosts hazel and willow, two of the most allergenic early-season trees. This area, just outside the immediate area, has a canopy of oak and birch, birch chief among them for allergenic potency here. Nearby, not far from here, a park whose turf grass and ornamental plantings feed local grass and ragweed pollen levels.

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):

    Moderate

    35/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Low

    20/100

  • 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):

    Moderate

    45/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Moderate

    27/100

  • Ragweed (Ambrosia):

    High

    70/100

Air quality in River Grove

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Frequently Asked Questions

Is pollen high in River Grove right now?

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

Will pollen levels change in River Grove tomorrow?

On 31 August 2026, pollen conditions in River Grove will be different from today, with ambrosia at high levels, grass at moderate levels and artemisia increasing

Is pollen expected to decrease in River Grove 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 River Grove?

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

When is pollen season in River Grove?
Water-edge hazel and willow are usually the first allergenic trees active here, usually peaking sometime between late winter and the end of March. Oak and birch nearby take over the pollen calendar through mid-spring, peaking in the heart of spring, generally April into May. Grass pollen climbs toward a June peak, with ragweed climbing to its own high point from mid-August through October.
How often is the River Grove pollen forecast updated?

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

Does pollen in River Grove 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 River Grove 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 River Grove, 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?

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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 River Grove.

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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.