Grand Rapids pollen forecast — Grand River Corridor neighborhood
Today (25 June) pollen in Grand River Corridor, Grand Rapids is high; grass is high. Tomorrow (26 June 2026) levels are similar - grass declining. Over the following five days grass will increase. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Grand Rapids Grand River Corridor features sycamore, willow, and cottonwood as the main pollen sources as the river passes through the heart of Grand Rapids. The Grand River valley concentrates pollen under calm conditions, while surrounding Michigan farmland contributes substantial grass pollen and mugwort extends into September throughout.
Today - 25 June
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
None
0/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
None
0/100
-
Grass (Poaceae):
High
61/100
-
Willow (Salicaceae):
None
0/100
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 - 26 June
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
None
0/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
None
0/100
-
Grass (Poaceae):
Low
23/100
-
Willow (Salicaceae):
None
0/100
Other Landmarks in Grand Rapids
Frequently Asked Questions
Is pollen high in Grand Rapids right now?
On 25 June 2026, overall pollen levels in Grand Rapids are high. Grass is the main contributor to airborne pollen
Will pollen levels change in Grand Rapids tomorrow?
On 26 June 2026, pollen conditions in Grand Rapids will be different from today, with grass continuing to decline
Is pollen expected to decrease in Grand Rapids this week?
According to the five-day outlook, grass pollen levels will increase later in the week.
Which pollen types are currently active in Grand Rapids?
On 25 June 2026, Grass is the dominant pollen source in Grand Rapids. willow, hazel, and cypress are not currently active.
When is pollen season in Grand Rapids?
How often is the Grand Rapids pollen forecast updated?
The Grand Rapids pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Grand Rapids 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 Rapids 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 Rapids, 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: 25 Jun 2026, 09:01 CET (Data is updated four times daily.)
This page provides the latest public pollen forecast for Grand River Corridor, Grand Rapids.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.