Winfield, Kansas pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Winfield, Kansas is moderate; ragweed is moderate; grass is low.
Pollen Tomorrow
Tomorrow (21 September 2026) levels are similar to today.
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 | 18/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | None | 0/100 |
| Ragweed (Ambrosia) | Moderate | 44/100 |
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 | 22/100 | |
| Willow (Salicaceae) | None | 0/100 | — |
| Mugwort (Artemisia) | None | 0/100 | |
| Ragweed (Ambrosia) | Moderate | 47/100 |
Local Environmental Conditions
Winfield sits on rolling farmland along the Walnut River in south-central Kansas, where the dominant vegetation is a mix of riverside cottonwood, wheat fields, and tallgrass prairie, shaping the local pollen profile across the seasons. Individual yards and gardens around Winfield can still vary somewhat from this general pattern. Small local variations aside, this pattern holds fairly steady from year to year.
Winfield sees its pollen season open with elm and cottonwood from March then ash follows, running through April. Grass follows, peaking through May and June, while ragweed and mugwort extend the season into September. The continental climate and surrounding farmland drive a well-defined spring tree peak and a strong late-summer ragweed season throughout the year.
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Frequently Asked Questions About Pollen in Kansas
Is pollen high in Winfield, Kansas right now?
On 20 September 2026, overall pollen levels in Winfield, Kansas are moderate. Ambrosia is the main contributor to airborne pollen, while grass remain at lower levels
Will pollen levels change in Winfield, Kansas tomorrow?
On 21 September 2026, pollen conditions in Winfield, Kansas will be similar to today, with ambrosia at moderate levels, grass at low levels
Is pollen expected to decrease in Winfield, Kansas 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 Winfield, Kansas?
On 20 September 2026, Ambrosia is the dominant pollen source in Winfield, Kansas. grass are also present but at lower levels. artemisia are not currently active.
When is pollen season in Winfield, Kansas?
How often is the Winfield, Kansas pollen forecast updated?
The Winfield, Kansas pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Winfield, Kansas 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 Winfield, Kansas 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 Winfield, Kansas, 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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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).
