Deerpath, Lake Forest, Illinois Pollen Forecast - Today, Tomorrow and the Week Ahead
Pollen Today
Today (10 October) pollen in Deerpath, Lake Forest, Illinois 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, mugwort, and ragweed will increase.
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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 | 6/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | Low | 6/100 |
| Ragweed (Ambrosia) | Low | 9/100 |
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 | 5/100 |
Local Environmental Conditions
Most of the area around this part of Lake Forest, Illinois is woodland, with a good deal of open grassland and some built-up land. With a stream or river close by, riverside trees such as willow and poplar contribute to the local mix. Oak heads the list of allergenic trees nearby, ahead of maple and poplar. Grass pollen is plentiful, while ragweed and plantain lead among the weeds.
Tree pollen peaks in late spring, when the weather warms to around 15°C and oak, maple and poplar 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. Rain is heaviest in summer, often giving short breaks from high pollen levels.
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Resource Hub
Pollen forecast neighborhoods 5 neighborhoods
Sports venues in Lake Forest, Illinois 4 sports venues
Frequently Asked Questions About Pollen in Illinois
Is pollen high in Lake Forest, Illinois right now?
On 10 October 2026, overall pollen levels in Lake Forest, Illinois are low. Ambrosia is the main contributor to airborne pollen, while artemisia and grass remain at lower levels
Will pollen levels change in Lake Forest, Illinois tomorrow?
On 11 October 2026, pollen conditions in Lake Forest, Illinois will be different from today, with ambrosia at low levels
Is pollen expected to decrease in Lake Forest, Illinois 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 Lake Forest, Illinois?
On 10 October 2026, Ambrosia is the dominant pollen source in Lake Forest, Illinois. artemisia and grass are also present but at lower levels.
When is pollen season in Lake Forest, Illinois?
How often is the Lake Forest, Illinois pollen forecast updated?
The Lake Forest, Illinois pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Lake Forest, Illinois 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 Forest, Illinois 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 Forest, Illinois, 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).
