Rimouski pollen forecast - today, tomorrow and the week ahead
Today (9 August) pollen in Rimouski is low; grass, mugwort, and ragweed are low. Tomorrow (10 August 2026) levels are similar - grass increasing, mugwort increasing, ragweed increasing. Over the following five days grass, mugwort, and ragweed will increase. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Follow your pollen exposure and performance with the free Airmine–Strava integration. See your pollen and air quality exposure for every Strava activity.
Rimouski's St. Lawrence River estuary setting features spruce, birch, and coastal grassland as the main pollen sources, with exposure varying between shoreline greenery and the built-up Bas-Saint-Laurent regional city centre.
Today - 9 August
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
None
0/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
None
0/100
-
Grass (Poaceae):
Low
3/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
Low
4/100
-
Ragweed (Ambrosia):
Low
13/100
High pollen levels may trigger sneezing, itchy eyes, and congestion. Airmine's neighbourhood estimates use satellites to map local vegetation and a statistical prediction model, updated four times daily.
Tomorrow - 10 August
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
None
0/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
None
0/100
-
Grass (Poaceae):
Medium
26/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
Medium
29/100
-
Ragweed (Ambrosia):
High
61/100
Air quality in Rimouski
View air qualityPollen forecast for neighborhoods and landmarks in Rimouski
Frequently Asked Questions
Is pollen high in Rimouski right now?
On 9 August 2026, overall pollen levels in Rimouski are low. Grass is the main contributor to airborne pollen, while ambrosia and artemisia remain at lower levels
Will pollen levels change in Rimouski tomorrow?
On 10 August 2026, pollen conditions in Rimouski will be different from today, with grass, ambrosia, artemisia increasing
Is pollen expected to decrease in Rimouski this week?
According to the five-day outlook, grass, ambrosia, and artemisia pollen levels will increase later in the week.
Which pollen types are currently active in Rimouski?
On 9 August 2026, Grass is the dominant pollen source in Rimouski. ambrosia and artemisia are also present but at lower levels. cypress are not currently active.
When is pollen season in Rimouski?
How often is the Rimouski pollen forecast updated?
The Rimouski pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Rimouski 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 Rimouski 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 Rimouski, 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.
Check pollen in other popular cities:
Data provided by Airmine — Last update: 9 August 2026 at 20:27 CEST (Data is updated four times daily.)
This page provides the latest public pollen forecast for Rimouski.
Get the full experience in the Airmine app.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.