Winnipeg Pollen Forecast - Today, Tomorrow and the Week Ahead
Pollen Today
Today (10 October) pollen in Winnipeg is moderate; ragweed is moderate; mugwort, mold (alternaria), and mold (cladosporium) are low.
Pollen Tomorrow
Tomorrow (11 October 2026) mold (alternaria) remains low, mold (cladosporium) remains low, mugwort no longer expected, ragweed no longer expected.
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 - 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) | Low | 25/100 |
| Ragweed (Ambrosia) | Moderate | 33/100 |
| Mold (Alternaria) | Low | 12/100 |
| Mold (Cladosporium) | Low | 20/100 |
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) | Low | 1/100 | |
| Mold (Cladosporium) | Low | 7/100 |
Local Environmental Conditions
The area around the heart of Winnipeg is densely built up. Maple is the most prominent allergenic tree nearby, with oak and poplar also present. Grasses also feature strongly, alongside mugwort and plantain among the weeds. Mugwort is unusually common here compared with most other locations, making it a particularly important local pollen source.
Tree pollen peaks in mid-spring, when the weather warms to around 5°C and maple, oak and poplar are in full flower. Grasses take over in early summer, with temperatures around 20°C, and their pollen lingers into late summer. The most intense period comes from midsummer into early fall, when mugwort and plantain are in flower. Rain is heaviest in spring, often giving short breaks from high pollen levels.
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Pollen forecast neighborhoods 21 neighborhoods
Sports venues in Winnipeg 4 sports venues
Frequently Asked Questions About Pollen in Manitoba
Is pollen high in Winnipeg right now?
On 10 October 2026, overall pollen levels in Winnipeg are moderate. Ambrosia is the main contributor to airborne pollen, while artemisia remain at lower levels
Will pollen levels change in Winnipeg tomorrow?
On 11 October 2026, pollen conditions in Winnipeg will be similar to today with no significant pollen expected.
Is pollen expected to decrease in Winnipeg this week?
According to the five-day outlook, artemisia and ambrosia pollen levels will increase later in the week.
Which pollen types are currently active in Winnipeg?
On 10 October 2026, Ambrosia is the dominant pollen source in Winnipeg. artemisia are also present but at lower levels. grass are not currently active.
When is pollen season in Winnipeg?
How often is the Winnipeg pollen forecast updated?
The Winnipeg pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Winnipeg 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 Winnipeg 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 Winnipeg, 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).
