Hamilton, Montana Pollen Forecast - Today, Tomorrow and the Week Ahead
Pollen Today
Today (10 October) pollen in Hamilton, Montana is low; mold (cladosporium) is low.
Pollen Tomorrow
Tomorrow (11 October 2026) mold (cladosporium) no longer expected.
7-Day Trend
Over the next week mugwort, ragweed, mold (alternaria), and mold (cladosporium) will increase; grass will remain stable.
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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) | None | 0/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | None | 0/100 |
| Ragweed (Ambrosia) | None | 0/100 |
| Mold (Alternaria) | None | 0/100 |
| Mold (Cladosporium) | Low | 2/100 |
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) | None | 0/100 | |
| Mold (Alternaria) | None | 0/100 | |
| Mold (Cladosporium) | None | 0/100 |
Local Environmental Conditions
Around 58% of the area near the heart of Hamilton is built-up land, with some woodland and open grassland. With this much woodland around, trees are an important local pollen source. There is plenty of grass pollen here too. In the immediate area, planted trees and mown lawns are the main sources in the built-up parts.
Flowering trees bring the first pollen of the year in late spring. Grasses take over in early summer and keep pollen in the air into late summer. Weeds on open ground add a smaller late peak from early summer into early fall. By mid-fall, as temperatures fall to around 5°C, pollen levels are low again.
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Frequently Asked Questions About Pollen in Montana
Is pollen high in Hamilton, Montana right now?
Currently, there is no significant pollen in Hamilton, Montana.
Will pollen levels change in Hamilton, Montana tomorrow?
On 11 October 2026, pollen conditions in Hamilton, Montana will be similar to today with no significant pollen expected.
Is pollen expected to decrease in Hamilton, Montana 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 Hamilton, Montana?
On 10 October 2026, there are no significant pollen types in Hamilton, Montana.
When is pollen season in Hamilton, Montana?
How often is the Hamilton, Montana pollen forecast updated?
The Hamilton, Montana pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Hamilton, Montana 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 Hamilton, Montana 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 Hamilton, Montana, 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).
