Eagle Creek Park, Indianapolis Pollen Forecast - Today, Tomorrow and the Week Ahead
Pollen Today
Today (10 October) pollen in Eagle Creek Park, Indianapolis is moderate; mold (cladosporium) is moderate; grass, ragweed, and mold (alternaria) are low.
Pollen Tomorrow
Tomorrow (11 October 2026) ragweed remains low, mold (alternaria) remains low, mold (cladosporium) declining, grass no longer expected.
7-Day Trend
Over the next week grass, mugwort, ragweed, mold (alternaria), and mold (cladosporium) will increase.
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Pollen Risk
Today - 10 October
| 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 | 4/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | None | 0/100 |
| Ragweed (Ambrosia) | Low | 9/100 |
| Mold (Alternaria) | Low | 14/100 |
| Mold (Cladosporium) | Moderate | 37/100 |
Tomorrow - 11 October
| 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 | |
| Mold (Alternaria) | Low | 6/100 | |
| Mold (Cladosporium) | Low | 18/100 |
Local Environmental Conditions
The area around this site in Indianapolis is a mix of open water and woodland. With Eagle Creek nearby, riverside trees such as poplar and plane tree along its banks contribute to the local mix. Of the trees nearby, oak, maple and plane tree are the ones that matter most for allergies. Grasses also feature strongly, alongside ragweed and plantain among the weeds.
Oak, maple and plane tree lead the season in mid-spring, as temperatures climb to around 10°C, and tree pollen reaches its peak. Grass pollen follows, peaking in late spring and easing off by early fall. The season closes with ragweed and plantain from late summer into mid-fall. By late fall, as temperatures fall to around 5°C, pollen levels are low again.
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Frequently Asked Questions About Pollen in Indiana
Is pollen high in Indianapolis right now?
On 10 October 2026, overall pollen levels in Indianapolis are low. Grass is the main contributor to airborne pollen, while ambrosia remain at lower levels
Will pollen levels change in Indianapolis tomorrow?
On 11 October 2026, pollen conditions in Indianapolis will be different from today, with ambrosia at low levels
Is pollen expected to decrease in Indianapolis 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 Indianapolis?
On 10 October 2026, Grass is the dominant pollen source in Indianapolis. ambrosia are also present but at lower levels. artemisia are not currently active.
When is pollen season in Indianapolis?
How often is the Indianapolis pollen forecast updated?
The Indianapolis pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Indianapolis 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 Indianapolis 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 Indianapolis, 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 pollen scores represent risk levels, not direct pollen measurements. Higher scores indicate higher risk.
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).
