Ashtabula pollen forecast — Ashtabula Harbour Commercial District neighborhood
Pollen Today
Today (20 September) pollen in Ashtabula Harbour Commercial District, Ashtabula 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 | 17/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | Low | 6/100 |
| Ragweed (Ambrosia) | Low | 24/100 |
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 | 6/100 |
Local Environmental Conditions
Here, barely 100-200 meters away, water here is bordered by hazel and willow, both notable sources of wind-borne pollen. This area, as close as 250m from this location, has the tree cover here leans heavily on oak and birch, both key drivers of spring pollen. A green space where lawn grass and ornamental plantings top up the local grass and ragweed count; this sits a short 100 meters out.
Near the bank, hazel and willow lead the seasonal calendar, starting well before the main spring rush, topping out around March. Woodland oak and birch pick up the pace next, through mid-to-late spring, usually hitting its highest point sometime between mid-April and mid-May. Through late spring, grass pollen climbs steadily toward its June peak, with ragweed climbing to its own high point from mid-August through October.
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Pollen forecast neighborhoods 2 neighborhoods
Frequently Asked Questions About Pollen in Ohio
Is pollen high in Ashtabula right now?
On 20 September 2026, overall pollen levels in Ashtabula are low. Ambrosia is the main contributor to airborne pollen, while artemisia and grass remain at lower levels
Will pollen levels change in Ashtabula tomorrow?
On 21 September 2026, pollen conditions in Ashtabula will be different from today, with ambrosia at low levels
Is pollen expected to decrease in Ashtabula 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 Ashtabula?
On 20 September 2026, Ambrosia is the dominant pollen source in Ashtabula. artemisia and grass are also present but at lower levels.
When is pollen season in Ashtabula?
How often is the Ashtabula pollen forecast updated?
The Ashtabula pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Ashtabula 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 Ashtabula 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 Ashtabula, 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).
