Champaign pollen forecast - today, tomorrow and the week ahead

Today (9 August) pollen in Champaign is medium; ragweed is medium; grass and mugwort are low. Tomorrow (10 August 2026) levels are similar - grass remains low, ragweed remains medium, 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.

Get the full experience in the Airmine app.

Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team

Follow your pollen exposure and performance with the free Airmine–Strava integration. See your pollen and air quality exposure for every Strava activity.

Champaign's parks, including Crystal Lake Park and the Saline Branch corridor, feature oak, maple, and ash as the main tree pollen sources, with exposure varying between these green areas and the more built-up city centre. Surrounding Illinois farmland and prairie contribute substantial grass and crop pollen, while the flat, open Midwest landscape allows pollen to disperse readily across the city under prevailing westerly winds.

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):

    Low

    8/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Low

    6/100

  • Ragweed (Ambrosia):

    Medium

    29/100

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

    25/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Medium

    26/100

  • Ragweed (Ambrosia):

    Medium

    49/100

Air quality in Champaign

View air quality

Pollen forecast for neighborhoods and landmarks in Champaign

Frequently Asked Questions

Is pollen high in Champaign right now?

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

Will pollen levels change in Champaign tomorrow?

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

Is pollen expected to decrease in Champaign 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 Champaign?

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

When is pollen season in Champaign?
Champaign's pollen season opens with maple and elm from late February, followed by oak and ash through April and May. Grass pollen peaks through June and July, with ragweed extending the season strongly into October. The flat, open Illinois farmland and prairie landscape allows substantial grass and crop pollen to disperse widely across the city under prevailing westerly winds, while the humid continental climate produces intense seasonal peaks.
How often is the Champaign pollen forecast updated?

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

Does pollen in Champaign 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 Champaign 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 Champaign, 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 Champaign.

Get the full experience in the Airmine app.

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.