Glenview pollen forecast — Chapel Crossing in the Glen neighborhood
Pollen Today
Today (20 September) pollen in Chapel Crossing in the Glen, Glenview is moderate; ragweed is moderate; grass and mugwort are low.
Pollen Tomorrow
Tomorrow (21 September 2026) grass remains low, ragweed remains moderate, mugwort no longer expected.
7-Day Trend
Over the next week grass, mugwort, and ragweed will increase.
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Pollen Risk
Today - 20 September
| 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 | 24/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | Low | 1/100 |
| Ragweed (Ambrosia) | Moderate | 42/100 |
Tomorrow - 21 September
| 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) | Low | 10/100 | |
| Willow (Salicaceae) | None | 0/100 | — |
| Mugwort (Artemisia) | None | 0/100 | |
| Ragweed (Ambrosia) | Moderate | 28/100 |
Local Environmental Conditions
Chapel Crossing in the Glen — Hazel and willow line the water's edge, releasing pollen that carries easily on the wind, some 339 meters out. Located within easy reach at 641m, this area has woods composed largely of oak and birch, a combination tied to sharp spring pollen spikes. Maintained parkland where turf grass and ornamental species add to the grass and ragweed mix; this sits positioned about 264m from the neighborhood.
The bank's hazel and willow kick off the pollen season ahead of the rest, reaching its high point sometime in late winter or early spring. Once hazel fades, oak and birch in the woods carry the season forward, typically landing in April and May. Grass pollen builds through late spring and peaks in June, with ragweed then rising to the fore from mid-August through October.
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Frequently Asked Questions About Pollen in Illinois
Is pollen high in Glenview right now?
On 20 September 2026, overall pollen levels in Glenview are moderate. Ambrosia is the main contributor to airborne pollen, while artemisia and grass remain at lower levels
Will pollen levels change in Glenview tomorrow?
On 21 September 2026, pollen conditions in Glenview will be different from today, with ambrosia at moderate levels, grass at low levels
Is pollen expected to decrease in Glenview this week?
According to the five-day outlook, ambrosia, artemisia, and grass pollen levels will increase later in the week.
Which pollen types are currently active in Glenview?
On 20 September 2026, Ambrosia is the dominant pollen source in Glenview. artemisia and grass are also present but at lower levels.
When is pollen season in Glenview?
How often is the Glenview pollen forecast updated?
The Glenview pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Glenview 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 Glenview 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 Glenview, 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 scores represent risk levels, not direct measurements of pollen or air pollutant concentrations. Higher scores indicate higher risk. Pollen and air quality use different thresholds.
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).
