Saddlewood, Glen Ellyn Pollen Forecast - Today, Tomorrow and the Week Ahead
Pollen Today
Today (10 October) pollen in Saddlewood, Glen Ellyn is low; grass, mugwort, and ragweed are low.
Pollen Tomorrow
Tomorrow (11 October 2026) ragweed remains low, grass no longer expected, mugwort no longer expected.
7-Day Trend
Over the next week grass and mugwort will increase; ragweed will decrease.
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Pollen Risk
Today - 10 October
| Pollen species | Level | Value |
|---|---|---|
| Alder (Alnus) | None | 0/100 |
| Birch (Betula) | None | 0/100 |
| Hazel (Corylus) | None | 0/100 |
| Cypress (Cupressaceae) | None | 0/100 |
| Grass (Poaceae) | Low | 7/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | Low | 7/100 |
| Ragweed (Ambrosia) | Low | 11/100 |
Tomorrow - 11 October
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| 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 | 12/100 |
Local Environmental Conditions
This part of Glen Ellyn is surrounded mainly by woodland, with a good deal of built-up land. The leading allergenic tree nearby is oak, with maple close behind. Grasses and weeds such as ragweed and plantain round out the local mix. Oak is unusually common here compared with most other locations, making it a particularly important local pollen source.
Tree pollen peaks in late spring, when the weather warms to around 15°C and oak and maple are in full flower. Grass pollen follows, peaking in early summer and easing off by early fall. The season closes with ragweed and plantain from late summer into mid-fall. The oak period in late spring is usually the most intense time of year here.
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Frequently Asked Questions About Pollen in Illinois
Is pollen high in Glen Ellyn right now?
On 10 October 2026, overall pollen levels in Glen Ellyn are low. Ambrosia is the main contributor to airborne pollen, while artemisia and grass remain at lower levels
Will pollen levels change in Glen Ellyn tomorrow?
On 11 October 2026, pollen conditions in Glen Ellyn will be different from today, with ambrosia at low levels
Is pollen expected to decrease in Glen Ellyn this week?
According to the five-day outlook, ambrosia pollen levels are expected to gradually decrease, while artemisia and grass pollen will increase, suggesting mixed conditions later in the week.
Which pollen types are currently active in Glen Ellyn?
On 10 October 2026, Ambrosia is the dominant pollen source in Glen Ellyn. artemisia and grass are also present but at lower levels.
When is pollen season in Glen Ellyn?
How often is the Glen Ellyn pollen forecast updated?
The Glen Ellyn pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Glen Ellyn 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 Glen Ellyn 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 Glen Ellyn, 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.
Understanding the Scale
The 0–100 pollen scores represent risk levels, not direct pollen measurements. Higher scores indicate higher risk.
Pollen
| None | 0 | No or negligible risk of exposure. Pollen/mold exposure is expected to be minimal. |
| Low | 0-25 | Low risk of exposure. Small amounts of pollen or mold spores may be present. |
| Moderate | 25-50 | Moderate risk of exposure. Pollen/mold exposure is expected to be noticeable. |
| High | 50-75 | High risk of exposure. Elevated pollen/mold exposure is expected. |
| Very High | 75-100 | Very high risk of exposure. Pollen/mold exposure is expected to be at or near its highest levels. |
Get More in the Airmine Pollen app
Get 15-day pollen forecasts with morning, afternoon and evening detail, plus 5-day air quality forecasts. Explore interactive pollen risk maps, estimated pollen season start, route profiles and a symptoms diary.
Features and forecast availability vary by region. Currently covering Europe, the contiguous US, southern Canada, South Africa, Australia, Indonesia (Java & Bali), Brazil, Paraguay, Uruguay and the Buenos Aires area.
Developed with support from the European Space Agency (ESA) Business Applications and Space Solutions (BASS).
