Staten Island pollen forecast — Chelsea neighborhood
Pollen Today
Today (20 September) pollen in Chelsea, Staten Island is moderate; grass is moderate; ragweed is low.
Pollen Tomorrow
Tomorrow (21 September 2026) ragweed remains low, grass declining.
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) | Moderate | 26/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | None | 0/100 |
| Ragweed (Ambrosia) | Low | 21/100 |
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 | 22/100 | |
| Willow (Salicaceae) | None | 0/100 | — |
| Mugwort (Artemisia) | None | 0/100 | |
| Ragweed (Ambrosia) | Low | 16/100 |
Local Environmental Conditions
Located near this part of town, this area has hazel and willow thrive along the damp bank, both prolific early wind-pollinators. Woodland dominated by oak and birch, with birch a leading regional tree-pollen allergen; this sits within the neighborhood's edge. As with most local readings, actual levels can vary somewhat with short-term weather swings.
Hazel and willow by the water are typically first out of the gate, peaking in late winter through March. Once hazel fades, oak and birch in the woods carry the season forward, usually peaking from April into May. Grass pollen counts rise through late spring, reaching their peak around June, then yields to ragweed, the dominant late-summer and fall allergen through October.
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Frequently Asked Questions About Pollen in New York
Is pollen high in Staten Island right now?
On 20 September 2026, overall pollen levels in Staten Island are moderate. Grass is the main contributor to airborne pollen, while ambrosia remain at lower levels
Will pollen levels change in Staten Island tomorrow?
On 21 September 2026, pollen conditions in Staten Island will be different from today, with ambrosia at low levels and grass continuing to decline
Is pollen expected to decrease in Staten Island 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 Staten Island?
On 20 September 2026, Grass is the dominant pollen source in Staten Island. ambrosia are also present but at lower levels. artemisia are not currently active.
When is pollen season in Staten Island?
How often is the Staten Island pollen forecast updated?
The Staten Island pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Staten Island 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 Staten Island 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 Staten Island, 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).
