Worthington pollen forecast — Colonial Hills neighborhood
Pollen Today
Today (2 September) pollen in Colonial Hills, Worthington is high; ragweed is high; grass is moderate; mugwort is low.
Pollen Tomorrow
Tomorrow (3 September 2026) levels are similar to today.
7-Day Trend
Over the next week grass, mugwort, and ragweed will decrease; cypress will remain stable.
Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset. Airmine's estimates use satellites to map local vegetation and a statistical prediction model, updated four times daily. Developed with support from the European Space Agency (ESA) Business Applications and Space Solutions (BASS) team.
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Air Quality
Air Quality Forecast for Worthington AQI today AQI tomorrowPollen for Neighborhoods
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Pollen Risk
Today - 2 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 | 37/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | Low | 19/100 |
| Ragweed (Ambrosia) | High | 69/100 |
Tomorrow - 3 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) | Moderate | 30/100 | |
| Willow (Salicaceae) | None | 0/100 | — |
| Mugwort (Artemisia) | Low | 10/100 | |
| Ragweed (Ambrosia) | High | 61/100 |
Local Environmental Conditions
Here, some 500 meters out, hazel and willow thrive along the damp bank, both prolific early wind-pollinators. Oak and birch dominating the treeline, both heavy contributors to the spring pollen load; this sits reasonably near, about 400 meters out. This area, close by, around 200-300 meters away, has the park's turf and planted trees form a small but steady source of grass and ragweed pollen.
Water-edge hazel and willow are usually the first allergenic trees active here, arriving ahead of the rest of the season, cresting around late winter. The woodland's oak and birch trees become the main pollen source by mid-spring, usually peaking from April into May. Late spring sees grass pollen build steadily toward a peak in June, before ragweed takes over as the dominant allergen from mid-August through October.
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Frequently Asked Questions About Pollen in Ohio
Is pollen high in Worthington right now?
On 2 September 2026, overall pollen levels in Worthington are high. Ambrosia is the main contributor to airborne pollen, while grass and artemisia remain at lower levels
Will pollen levels change in Worthington tomorrow?
On 3 September 2026, pollen conditions in Worthington will be similar to today, with ambrosia at high levels, artemisia at low levels, grass at moderate levels
Is pollen expected to decrease in Worthington this week?
According to the five-day outlook, ambrosia, artemisia, and grass pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.
Which pollen types are currently active in Worthington?
On 2 September 2026, Ambrosia is the dominant pollen source in Worthington. grass and artemisia are also present but at lower levels. cypress are not currently active.
When is pollen season in Worthington?
How often is the Worthington pollen forecast updated?
The Worthington pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Worthington 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 Worthington 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 Worthington, 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 exposure is expected to be minimal. |
| Low | 0-25 | Low risk of exposure. Small amounts of pollen may be present. |
| Moderate | 25-50 | Moderate risk of exposure. Pollen exposure is expected to be noticeable. |
| High | 50-75 | High risk of exposure. Elevated pollen exposure is expected. |
| Very High | 75-100 | Very high risk of exposure. Pollen 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).
