Creston Pollen Forecast - Today, Tomorrow and the Week Ahead
Pollen Today
Today (11 October) pollen in Creston is moderate; mold (alternaria) and mold (cladosporium) are moderate.
Pollen Tomorrow
Tomorrow (12 October 2026) mold (alternaria) remains moderate, mold (cladosporium) remains moderate, grass at low levels, mugwort at low levels, ragweed at low levels.
7-Day Trend
Over the next week grass and mugwort will increase; ragweed, mold (alternaria), and mold (cladosporium) will decrease.
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Pollen Risk
Today - 11 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) | None | 0/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | None | 0/100 |
| Ragweed (Ambrosia) | None | 0/100 |
| Mold (Alternaria) | Moderate | 29/100 |
| Mold (Cladosporium) | Moderate | 31/100 |
Tomorrow - 12 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) | Low | 1/100 | |
| Willow (Salicaceae) | None | 0/100 | — |
| Mugwort (Artemisia) | Low | 2/100 | |
| Ragweed (Ambrosia) | Low | 16/100 | |
| Mold (Alternaria) | Moderate | 31/100 | |
| Mold (Cladosporium) | Moderate | 30/100 |
Local Environmental Conditions
The heart of Creston sits among a blend of built-up land and woodland, plus some open grassland. Locally, the surrounding woods make trees an important source; open grassland adds grass and weed pollen; planted trees and mown lawns are the main sources in the built-up parts. Grasses along roadsides, verges and open ground also add to the overall pollen load.
Flowering trees bring the first pollen of the year in mid-spring. Grasses take over in late spring, with temperatures around 15°C, and their pollen lingers into early fall. A smaller weed peak follows from early summer into early fall. In warm, humid weather from late spring into midsummer, mold spores add to the mix, especially after rain.
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Frequently Asked Questions About Pollen in Iowa
Is pollen high in Creston right now?
Currently, there is no significant pollen in Creston.
Will pollen levels change in Creston tomorrow?
On 12 October 2026, pollen conditions in Creston will be different from today, with ambrosia at low levels, artemisia at low levels, grass at low levels
Is pollen expected to decrease in Creston this week?
According to the five-day outlook, ambrosia pollen levels are expected to gradually decrease, while artemisia and grass pollen will increase, suggesting mixed conditions later in the week.
Which pollen types are currently active in Creston?
On 11 October 2026, there are no significant pollen types in Creston.
When is pollen season in Creston?
How often is the Creston pollen forecast updated?
The Creston pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Creston 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 Creston 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 Creston, 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).
