Olathe, Kansas Pollen Forecast - Today, Tomorrow and the Week Ahead
Pollen Today
Today (10 October) pollen in Olathe, Kansas is moderate; mold (cladosporium) is moderate; grass, ragweed, and mold (alternaria) are low.
Pollen Tomorrow
Tomorrow (11 October 2026) grass remains low, mold (alternaria) remains low, mold (cladosporium) remains moderate, ragweed increasing, mugwort at low levels.
7-Day Trend
Over the next week mugwort will increase; grass, ragweed, mold (alternaria), and mold (cladosporium) will decrease.
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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 | 15/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | None | 0/100 |
| Ragweed (Ambrosia) | Low | 25/100 |
| Mold (Alternaria) | Low | 22/100 |
| Mold (Cladosporium) | Moderate | 41/100 |
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) | Low | 25/100 | |
| Willow (Salicaceae) | None | 0/100 | — |
| Mugwort (Artemisia) | Low | 8/100 | |
| Ragweed (Ambrosia) | Moderate | 35/100 | |
| Mold (Alternaria) | Low | 19/100 | |
| Mold (Cladosporium) | Moderate | 36/100 |
Local Environmental Conditions
The area around the center of Olathe is mostly woodland, with a good deal of built-up land. Close to Cedar Creek, riverside vegetation adds to local tree pollen. Of the allergenic trees nearby, oak matters most, while pecan and juniper also contribute. Grass pollen is significant here, and ragweed contributes weed pollen.
Tree pollen peaks in mid-spring, when the weather warms to around 15°C and oak, pecan and juniper are in full flower. Grasses take over in late spring, with temperatures around 20°C, and their pollen lingers into early fall. Ragweed brings a final peak from late summer into mid-fall. Spring is the wettest time of year, and heavy showers can bring short breaks in pollen.
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Frequently Asked Questions About Pollen in Kansas
Is pollen high in Olathe, Kansas right now?
On 10 October 2026, overall pollen levels in Olathe, Kansas are low. Ambrosia is the main contributor to airborne pollen, while grass remain at lower levels
Will pollen levels change in Olathe, Kansas tomorrow?
On 11 October 2026, pollen conditions in Olathe, Kansas will be different from today, with artemisia at low levels, grass at low levels and ambrosia increasing
Is pollen expected to decrease in Olathe, Kansas this week?
According to the five-day outlook, ambrosia and grass pollen levels are expected to gradually decrease, while artemisia pollen will increase, suggesting mixed conditions later in the week.
Which pollen types are currently active in Olathe, Kansas?
On 10 October 2026, Ambrosia is the dominant pollen source in Olathe, Kansas. grass are also present but at lower levels. artemisia are not currently active.
When is pollen season in Olathe, Kansas?
How often is the Olathe, Kansas pollen forecast updated?
The Olathe, Kansas pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Olathe, 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 Olathe, 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 Olathe, 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 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. |
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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).
