Sleepy Hollow Pollen Forecast - Today, Tomorrow and the Week Ahead
Pollen Today
Today (10 October) pollen in Sleepy Hollow is high; cypress is high; acacia, eucalyptus, and mold (cladosporium) are moderate; mold (alternaria) is low.
Pollen Tomorrow
Tomorrow (11 October 2026) acacia remains moderate, cypress remains high, eucalyptus remains moderate, mold (cladosporium) remains moderate, mold (alternaria) increasing.
7-Day Trend
Over the next week acacia, cypress, eucalyptus, mold (alternaria), and mold (cladosporium) will decrease; grass will remain stable.
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Pollen Risk
Today - 10 October
| Pollen species | Level | Value |
|---|---|---|
| Acacia (Acacia) | Moderate | 29/100 |
| Cypress (Cupressaceae) | High | 68/100 |
| Eucalyptus (Myrtaceae) | Moderate | 32/100 |
| Grass (Poaceae) | None | 0/100 |
| Mold (Alternaria) | Low | 22/100 |
| Mold (Cladosporium) | Moderate | 29/100 |
Tomorrow - 11 October
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Acacia (Acacia) | Moderate | 29/100 | |
| Cypress (Cupressaceae) | High | 67/100 | |
| Eucalyptus (Myrtaceae) | Moderate | 32/100 | |
| Grass (Poaceae) | None | 0/100 | |
| Mold (Alternaria) | Moderate | 26/100 | |
| Mold (Cladosporium) | Moderate | 30/100 |
Local Environmental Conditions
Most of the area around the heart of Sleepy Hollow is woodland, with a good deal of open grassland. The damp ground beside a stream or river nearby supports trees, shrubs and reeds, adding to local pollen. So much tree cover makes trees an important source of pollen locally. Grass pollen is a substantial part of the local mix as well.
Tree pollen comes first, peaking in early spring. Grasses take over in mid-spring and keep pollen in the air into late fall. A smaller weed peak follows from early summer into early fall. Mold spores join in from late spring into late fall, when damp, warm spells let them thrive.
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Frequently Asked Questions About Pollen in New South Wales
Is pollen high in Sleepy Hollow right now?
On 10 October 2026, overall pollen levels in Sleepy Hollow are high. Cypress is the main contributor to airborne pollen, while acacia and myrtle remain at lower levels
Will pollen levels change in Sleepy Hollow tomorrow?
On 11 October 2026, pollen conditions in Sleepy Hollow will be similar to today, with acacia at moderate levels, cypress at high levels, myrtle at moderate levels
Is pollen expected to decrease in Sleepy Hollow this week?
According to the five-day outlook, acacia, cypress, and myrtle pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.
Which pollen types are currently active in Sleepy Hollow?
On 10 October 2026, Cypress is the dominant pollen source in Sleepy Hollow. acacia and myrtle are also present but at lower levels. grass are not currently active.
When is pollen season in Sleepy Hollow?
How often is the Sleepy Hollow pollen forecast updated?
The Sleepy Hollow pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Sleepy Hollow 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 Sleepy Hollow 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 Sleepy Hollow, 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).
