Grover Pollen Forecast - Today, Tomorrow and the Week Ahead
Pollen Today
Today (11 October) pollen in Grover is moderate; mold (alternaria) and mold (cladosporium) are moderate; ragweed is low.
Pollen Tomorrow
Tomorrow (12 October 2026) levels are similar to today.
7-Day Trend
Over the next week mugwort and ragweed will increase; mold (alternaria) and mold (cladosporium) will decrease; grass will remain stable.
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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) | Low | 12/100 |
| Mold (Alternaria) | Moderate | 48/100 |
| Mold (Cladosporium) | Moderate | 50/100 |
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) | None | 0/100 | |
| Willow (Salicaceae) | None | 0/100 | — |
| Mugwort (Artemisia) | None | 0/100 | |
| Ragweed (Ambrosia) | Low | 8/100 | |
| Mold (Alternaria) | Moderate | 39/100 | |
| Mold (Cladosporium) | Moderate | 47/100 |
Local Environmental Conditions
The center of Grover is largely open grassland. A nearby park adds mown lawns and planted trees to the local pollen mix. Locally, open grassland adds grass and weed pollen. Roadside verges and patches of open ground provide further room for grasses and weeds. Pollen also travels on the wind, so vegetation in the wider surroundings adds to local levels as well.
Grass pollen is the main feature of the year, building from late spring to a peak around early summer and lasting until late summer. The season closes with a lower weed peak from midsummer into mid-fall, mostly from roadside and field-edge plants. Locally, winters average a few degrees below freezing and summers around 25°C, with most rain falling in the warmer months.
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Frequently Asked Questions About Pollen in Colorado
Is pollen high in Grover right now?
On 11 October 2026, overall pollen levels in Grover are low. Ambrosia is the main contributor to airborne pollen
Will pollen levels change in Grover tomorrow?
On 12 October 2026, pollen conditions in Grover will be similar to today, with ambrosia at low levels
Is pollen expected to decrease in Grover this week?
According to the five-day outlook, ambrosia and artemisia pollen levels will increase later in the week.
Which pollen types are currently active in Grover?
On 11 October 2026, Ambrosia is the dominant pollen source in Grover. artemisia and grass are not currently active.
When is pollen season in Grover?
How often is the Grover pollen forecast updated?
The Grover pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Grover 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 Grover 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 Grover, 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).
