Lake Barrington pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Lake Barrington is low; grass and ragweed are low.
Pollen Tomorrow
Tomorrow (21 September 2026) ragweed remains low, grass 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 | 10/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | None | 0/100 |
| Ragweed (Ambrosia) | Low | 22/100 |
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) | None | 0/100 | |
| Willow (Salicaceae) | None | 0/100 | — |
| Mugwort (Artemisia) | None | 0/100 | |
| Ragweed (Ambrosia) | Low | 11/100 |
Local Environmental Conditions
In Lake Barrington, hazel and willow line the nearby bank, and their pollen carries easily on the wind. Around Lake Barrington, tree cover in the local woodland leans on oak and birch, key spring pollen drivers. Lake Barrington has a nearby park keeps grass and ragweed counts ticking over with regularly mown lawns. Local landscaping can nudge these figures either way.
The earliest pollen here comes from hazel and willow, cresting in late February or March. Mid-spring belongs to oak and birch, which typically peak in April or May. Grass pollen tops out in June. Ragweed then dominates from mid-August through October.
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Sports venues in Lake Barrington 1 sports venue
Frequently Asked Questions About Pollen in Illinois
Is pollen high in Lake Barrington right now?
On 20 September 2026, overall pollen levels in Lake Barrington are low. Grass is the main contributor to airborne pollen, while ambrosia remain at lower levels
Will pollen levels change in Lake Barrington tomorrow?
On 21 September 2026, pollen conditions in Lake Barrington will be different from today, with ambrosia at low levels
Is pollen expected to decrease in Lake Barrington 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 Lake Barrington?
On 20 September 2026, Grass is the dominant pollen source in Lake Barrington. ambrosia are also present but at lower levels. artemisia are not currently active.
When is pollen season in Lake Barrington?
How often is the Lake Barrington pollen forecast updated?
The Lake Barrington pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Lake Barrington 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 Lake Barrington 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 Lake Barrington, 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).
