Village of Croton-on-Hudson pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Village of Croton-on-Hudson is moderate; ragweed is moderate; grass is low.
Pollen Tomorrow
Tomorrow (21 September 2026) grass remains low, ragweed remains moderate, mugwort at low levels.
7-Day Trend
Over the next week mugwort will increase; grass and ragweed will decrease.
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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 | 23/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | None | 0/100 |
| Ragweed (Ambrosia) | Moderate | 35/100 |
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 | 24/100 | |
| Willow (Salicaceae) | None | 0/100 | — |
| Mugwort (Artemisia) | Low | 2/100 | |
| Ragweed (Ambrosia) | Moderate | 36/100 |
Local Environmental Conditions
Around Village of Croton-on-Hudson, hazel and willow take root along the nearby bank, prolific early pollinators. Near Village of Croton-on-Hudson, a nearby park adds mown turf and ornamental trees to the local pollen mix.
Hazel and willow lead the calendar, with a peak around late winter through March. Grass pollen builds through late spring and peaks in June. Ragweed then takes over from mid-August through October. Peak dates can shift a few weeks depending on the weather.
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Pollen forecast neighborhoods 1 neighborhood
Frequently Asked Questions About Pollen in New York
Is pollen high in Village of Croton-on-Hudson right now?
On 20 September 2026, overall pollen levels in Village of Croton-on-Hudson are moderate. Ambrosia is the main contributor to airborne pollen, while grass remain at lower levels
Will pollen levels change in Village of Croton-on-Hudson tomorrow?
On 21 September 2026, pollen conditions in Village of Croton-on-Hudson will be different from today, with ambrosia at moderate levels, artemisia at low levels, grass at low levels
Is pollen expected to decrease in Village of Croton-on-Hudson 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 Village of Croton-on-Hudson?
On 20 September 2026, Ambrosia is the dominant pollen source in Village of Croton-on-Hudson. grass are also present but at lower levels. artemisia are not currently active.
When is pollen season in Village of Croton-on-Hudson?
How often is the Village of Croton-on-Hudson pollen forecast updated?
The Village of Croton-on-Hudson pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Village of Croton-on-Hudson 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 Village of Croton-on-Hudson 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 Village of Croton-on-Hudson, 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).
