Anaconda pollen forecast — Downtown Anaconda neighborhood
Pollen Today
Today (20 September) pollen in Downtown Anaconda, Anaconda is high; ragweed is high; mugwort is low.
Pollen Tomorrow
Tomorrow (21 September 2026) levels are similar to today.
7-Day Trend
Over the next week mugwort and ragweed will decrease; grass will remain stable.
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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) | None | 0/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | Low | 15/100 |
| Ragweed (Ambrosia) | High | 53/100 |
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) | None | 0/100 | |
| Willow (Salicaceae) | None | 0/100 | — |
| Mugwort (Artemisia) | Low | 23/100 | |
| Ragweed (Ambrosia) | High | 59/100 |
Local Environmental Conditions
Downtown Anaconda, best described as the city's small former smelter-town downtown beneath the Anaconda Range, follows Anaconda's general vegetation pattern rather than a distinct local mix of its own. Visitors should expect roughly the same seasonal pattern as elsewhere in the city, with only minor local variation.
The pollen season at Downtown Anaconda mirrors Anaconda overall, starting with juniper and cottonwood in March with ash following close behind through April. A grass pollen peak follows through May and June; grass pollen lingers into early September before tapering off. The semi-arid high-elevation climate means fewer rainfall interruptions than in wetter US regions.
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Frequently Asked Questions About Pollen in Montana
Is pollen high in Anaconda right now?
On 20 September 2026, overall pollen levels in Anaconda are high. Ambrosia is the main contributor to airborne pollen, while artemisia remain at lower levels
Will pollen levels change in Anaconda tomorrow?
On 21 September 2026, pollen conditions in Anaconda will be similar to today, with ambrosia at high levels, artemisia at low levels
Is pollen expected to decrease in Anaconda this week?
According to the five-day outlook, ambrosia and artemisia pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.
Which pollen types are currently active in Anaconda?
On 20 September 2026, Ambrosia is the dominant pollen source in Anaconda. artemisia are also present but at lower levels. grass are not currently active.
When is pollen season in Anaconda?
How often is the Anaconda pollen forecast updated?
The Anaconda pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Anaconda 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 Anaconda 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 Anaconda, 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. |
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).
