Rosewood Heights Pollen Forecast - Today, Tomorrow and the Week Ahead
Pollen Today
Today (10 October) pollen in Rosewood Heights is moderate; mold (alternaria) and mold (cladosporium) are moderate; grass and ragweed are low.
Pollen Tomorrow
Tomorrow (11 October 2026) grass remains low, mold (cladosporium) remains moderate, ragweed increasing, mold (alternaria) declining.
7-Day Trend
Over the next week mugwort will increase; grass, ragweed, mold (alternaria), and mold (cladosporium) 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 | 12/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | None | 0/100 |
| Ragweed (Ambrosia) | Low | 20/100 |
| Mold (Alternaria) | Moderate | 26/100 |
| Mold (Cladosporium) | Moderate | 39/100 |
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) | Low | 17/100 | |
| Willow (Salicaceae) | None | 0/100 | — |
| Mugwort (Artemisia) | None | 0/100 | |
| Ragweed (Ambrosia) | Moderate | 26/100 | |
| Mold (Alternaria) | Low | 25/100 | |
| Mold (Cladosporium) | Moderate | 32/100 |
Local Environmental Conditions
Most of the area around the center of Rosewood Heights is woodland, with some open grassland. With the Cache River nearby, riverside vegetation along its banks contributes to the local mix. With this much woodland around, trees are an important local pollen source. There is plenty of grass pollen here too.
Tree pollen comes first, peaking in mid-spring. Grasses take over in late spring, with temperatures around 20°C, and their pollen lingers into early fall. A smaller weed peak follows from early summer into early fall. Rain is heaviest in summer, often giving short breaks from high pollen levels. By late fall, as temperatures fall to around 5°C, pollen levels are low again.
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Frequently Asked Questions About Pollen in Illinois
Is pollen high in Rosewood Heights right now?
On 10 October 2026, overall pollen levels in Rosewood Heights are low. Ambrosia is the main contributor to airborne pollen, while grass remain at lower levels
Will pollen levels change in Rosewood Heights tomorrow?
On 11 October 2026, pollen conditions in Rosewood Heights will be different from today, with grass at low levels and ambrosia increasing
Is pollen expected to decrease in Rosewood Heights this week?
According to the five-day outlook, ambrosia and grass pollen levels are expected to gradually decrease, while artemisia pollen will increase, suggesting mixed conditions later in the week.
Which pollen types are currently active in Rosewood Heights?
On 10 October 2026, Ambrosia is the dominant pollen source in Rosewood Heights. grass are also present but at lower levels. artemisia are not currently active.
When is pollen season in Rosewood Heights?
How often is the Rosewood Heights pollen forecast updated?
The Rosewood Heights pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Rosewood Heights 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 Rosewood Heights 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 Rosewood Heights, 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).
