Banff pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Banff is moderate; ragweed is moderate.
Pollen Tomorrow
Tomorrow (21 September 2026) ragweed declining.
7-Day Trend
Over the next week ragweed will decrease; grass and mugwort will remain stable.
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Local pollen and air quality forecasts, interactive pollen maps and route profiles
Features and forecast availability vary by region.
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) | None | 0/100 |
| Ragweed (Ambrosia) | Moderate | 29/100 |
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) | None | 0/100 | |
| Ragweed (Ambrosia) | Low | 21/100 |
Local Environmental Conditions
Banff's Bow Valley setting within Banff National Park features lodgepole pine, spruce, and subalpine meadow as dominant pollen sources beneath Cascade Mountain and Mount Rundle.
Set deep within Banff National Park's mountain peaks, Banff experiences one of the shortest, coolest pollen seasons in Alberta, with a late, compressed spring tree bloom from subalpine forest and minimal grass or ragweed exposure given the thin mountain soil.
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Resource Hub
Sports venues in Banff 1 sports venue
Frequently Asked Questions About Pollen in Alberta
Is pollen high in Banff right now?
On 20 September 2026, overall pollen levels in Banff are moderate. Ambrosia is the main contributor to airborne pollen
Will pollen levels change in Banff tomorrow?
On 21 September 2026, pollen conditions in Banff will be different from today, with ambrosia continuing to decline
Is pollen expected to decrease in Banff this week?
According to the five-day outlook, ambrosia pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.
Which pollen types are currently active in Banff?
On 20 September 2026, Ambrosia is the dominant pollen source in Banff. artemisia and grass are not currently active.
When is pollen season in Banff?
How often is the Banff pollen forecast updated?
The Banff pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Banff 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 Banff 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 Banff, 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).
