Violet Township pollen forecast - today, tomorrow and the week ahead

Updated: 20 September 2026 at 14:33 CEST

Pollen Today

High 67/100

Today (20 September) pollen in Violet Township is high; grass and ragweed are high; mugwort is low.

Pollen Tomorrow

Low 24/100

Tomorrow (21 September 2026) grass declining, ragweed declining, 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)
High
55/100
Willow (Salicaceae)
None
0/100
Mugwort (Artemisia)
Low
25/100
Ragweed (Ambrosia)
High
67/100

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
13/100
Willow (Salicaceae)
None
0/100
Mugwort (Artemisia)
None
0/100
Ragweed (Ambrosia)
Low
24/100
ENVIRONMENT & ANALYSIS

Local Environmental Conditions

Violet Township lies in the central Ohio till plain, not far from Big Walnut Creek and Alum Creek State Park. The surrounding landscape is dominated by bottomland hardwoods and reclaimed prairie. Big Walnut Creek winds through the wider area, its banks favoring moisture-loving trees such as willow and alder. Local vegetation still varies with soil type and drainage.

Streamside willow and alder near the Olentangy River kick off the local pollen calendar, usually strongest in the weeks before spring fully arrives. Tree pollen peaks next around Blendon Woods Metro Park, where oak and hickory dominate the canopy through most of April and May. Farther out toward Alum Creek and Highbanks Metro Park, tree pollen tends to follow this same rough schedule.

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Resource Hub

Air quality for Violet Township
Pollen forecast neighborhoods 10 neighborhoods
Sports venues in Violet Township 1 sports venue

Frequently Asked Questions About Pollen in Ohio

Is pollen high in Violet Township right now?

On 20 September 2026, overall pollen levels in Violet Township are high. Grass is the main contributor to airborne pollen, while ambrosia and artemisia remain at lower levels

Will pollen levels change in Violet Township tomorrow?

On 21 September 2026, pollen conditions in Violet Township will be different from today, with grass, ambrosia continuing to decline

Is pollen expected to decrease in Violet Township this week?

According to the five-day outlook, grass, ambrosia, and artemisia pollen levels will increase later in the week.

Which pollen types are currently active in Violet Township?

On 20 September 2026, Grass is the dominant pollen source in Violet Township. ambrosia and artemisia are also present but at lower levels.

When is pollen season in Violet Township?
Streamside willow and alder near the Olentangy River kick off the local pollen calendar, usually strongest in the weeks before spring fully arrives. Tree pollen peaks next around Blendon Woods Metro Park, where oak and hickory dominate the canopy through most of April and May. Farther out toward Alum Creek and Highbanks Metro Park, tree pollen tends to follow this same rough schedule.
How often is the Violet Township pollen forecast updated?

The Violet Township pollen forecast is updated four times daily. See the timestamp below for the most recent update.

Does pollen in Violet Township 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 Violet Township 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 Violet Township, 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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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).

Airmine app pollen map

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. This page provides the latest public pollen forecast for Violet Township.

Data provided by Airmine — Last update: 20 September 2026 at 14:33 CEST (Data is updated four times daily.)

Methodology & Technology

Our forecasts utilize high-resolution satellite imagery from the Copernicus Sentinel-5P mission combined with a proprietary network of ground-based IoT sensors. Pollen forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset in a statistical prediction model, updated four times daily.

Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.

Disclaimer

The information provided is for environmental awareness only and does not constitute medical advice. Athletes with known respiratory conditions or severe allergies should consult their physician before participating in strenuous outdoor activities based on these forecasts.

Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.