Port Clinton pollen forecast — West End neighborhood
Pollen Today
Today (20 September) pollen in West End, Port Clinton is low; grass, mugwort, and ragweed are low.
Pollen Tomorrow
Tomorrow (21 September 2026) ragweed remains low, grass no longer expected, mugwort no longer expected.
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) | Low | 12/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | Low | 1/100 |
| Ragweed (Ambrosia) | Low | 14/100 |
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) | None | 0/100 | |
| Willow (Salicaceae) | None | 0/100 | — |
| Mugwort (Artemisia) | None | 0/100 | |
| Ragweed (Ambrosia) | Low | 2/100 |
Local Environmental Conditions
Hazel and willow grow along the bank, contributing some of the season's earliest allergenic pollen, a short trip out, around 400-500m. This park's mix of turf and landscaped trees contributes a modest grass and ragweed pollen load; this sits barely 200 meters away. Local microclimate and soil conditions can push these figures slightly higher or lower.
The bank's hazel and willow kick off the pollen season ahead of the rest, usually peaking sometime between late winter and the end of March. Grass pollen rises through late spring toward a June high point, and ragweed later takes the lead from mid-August through October. Year-to-year timing varies a little, though the general sequence stays fairly consistent here.
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Frequently Asked Questions About Pollen in Ohio
Is pollen high in Port Clinton right now?
On 20 September 2026, overall pollen levels in Port Clinton are low. Ambrosia is the main contributor to airborne pollen, while artemisia and grass remain at lower levels
Will pollen levels change in Port Clinton tomorrow?
On 21 September 2026, pollen conditions in Port Clinton will be different from today, with ambrosia at low levels
Is pollen expected to decrease in Port Clinton 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 Port Clinton?
On 20 September 2026, Ambrosia is the dominant pollen source in Port Clinton. artemisia and grass are also present but at lower levels.
When is pollen season in Port Clinton?
How often is the Port Clinton pollen forecast updated?
The Port Clinton pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Port Clinton 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 Port Clinton 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 Port Clinton, 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. |
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).
