Grand Marais pollen forecast - today, tomorrow and the week ahead
Today (30 August) pollen in Grand Marais is high; grass and ragweed are high; mugwort is low. Tomorrow (31 August 2026) levels are similar. Over the following five days grass, mugwort, and ragweed will decrease. 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
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The vegetation around Grand Marais, on a remote Lake Superior shoreline town in the Upper Peninsula, is dominated by northern white cedar and paper birch, with dune grass adding further seasonal pollen exposure. Wind patterns across the area help determine how far pollen travels from these source plants. Microclimates within the area can shift the timing slightly from one neighborhood to the next.
Today - 30 August
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
None
0/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
None
0/100
-
Grass (Poaceae):
High
59/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
Low
8/100
-
Ragweed (Ambrosia):
High
55/100
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 - 31 August
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
None
0/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
None
0/100
-
Grass (Poaceae):
High
68/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
Low
17/100
-
Ragweed (Ambrosia):
High
64/100
Air quality in Grand Marais
View air qualityFrequently Asked Questions
Is pollen high in Grand Marais right now?
On 30 August 2026, overall pollen levels in Grand Marais are high. Grass is the main contributor to airborne pollen, while ambrosia and artemisia remain at lower levels
Will pollen levels change in Grand Marais tomorrow?
On 31 August 2026, pollen conditions in Grand Marais will be similar to today, with artemisia at low levels, grass at high levels, ambrosia at high levels
Is pollen expected to decrease in Grand Marais this week?
According to the five-day outlook, artemisia, grass, and ambrosia pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.
Which pollen types are currently active in Grand Marais?
On 30 August 2026, Grass is the dominant pollen source in Grand Marais. ambrosia and artemisia are also present but at lower levels. cypress are not currently active.
When is pollen season in Grand Marais?
How often is the Grand Marais pollen forecast updated?
The Grand Marais pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Grand Marais 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 Grand Marais 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 Grand Marais, 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.
Want to see pollen forecasts for other cities in United States?
Check pollen in other popular cities:
Data provided by Airmine — Last update: 30 August 2026 at 14:32 CEST (Data is updated four times daily.)
This page provides the latest public pollen forecast for Grand Marais.
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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.
Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.