Savoy pollen forecast — Brookshire neighborhood
Pollen Today
Today (20 September) pollen in Brookshire, Savoy 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 | 23/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | Low | 3/100 |
| 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 | 12/100 | |
| Willow (Salicaceae) | None | 0/100 | — |
| Mugwort (Artemisia) | None | 0/100 | |
| Ragweed (Ambrosia) | Moderate | 30/100 |
Local Environmental Conditions
Brookshire — Here, a short 218 meters out, the nearest stream or river hosts hazel and willow, two of the most allergenic early-season trees. Located a moderate 514 meters from here, this area has woodland dominated by oak and birch, with birch a leading regional tree-pollen allergen. Located some 509 meters out, this area has a park whose turf grass and ornamental plantings feed local grass and ragweed pollen levels.
Along the waterway, hazel and willow release pollen first, topping out well before most other trees start releasing pollen, around February and March. By mid-spring, oak and birch in the woods take over, generally peaking somewhere between April and May. Grass pollen rises through late spring toward a June high point, then gives way to ragweed, which drives the season's second major surge from mid-August into October.
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Frequently Asked Questions About Pollen in Illinois
Is pollen high in Savoy right now?
On 20 September 2026, overall pollen levels in Savoy are moderate. Ambrosia is the main contributor to airborne pollen, while grass and artemisia remain at lower levels
Will pollen levels change in Savoy tomorrow?
On 21 September 2026, pollen conditions in Savoy will be different from today, with grass at low levels, ambrosia at moderate levels
Is pollen expected to decrease in Savoy this week?
According to the five-day outlook, grass, ambrosia, and artemisia pollen levels will increase later in the week.
Which pollen types are currently active in Savoy?
On 20 September 2026, Ambrosia is the dominant pollen source in Savoy. grass and artemisia are also present but at lower levels.
When is pollen season in Savoy?
How often is the Savoy pollen forecast updated?
The Savoy pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Savoy 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 Savoy 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 Savoy, 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. |
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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).
