Grand Forks pollen forecast - today, tomorrow and the week ahead

Today (25 June) pollen in Grand Forks is medium; grass is medium. 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

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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team

Grand Forks's Red River Valley setting features cottonwood, elm, and box elder as the main tree pollen sources, with exposure varying between the greener residential areas along the Red River and the more built-up commercial corridors. The Red River corridor is a particularly significant local source, while the extremely flat, open Red River Valley allows grass pollen from surrounding North Dakota wheat farmland to disperse very widely throughout the season.

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):

    Medium

    41/100

  • 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

    5/100

  • Willow (Salicaceae):

    None

    0/100

Frequently Asked Questions

Is pollen high in Grand Forks right now?

On 25 June 2026, overall pollen levels in Grand Forks are moderate. Grass is the main contributor to airborne pollen

Will pollen levels change in Grand Forks tomorrow?

On 26 June 2026, pollen conditions in Grand Forks will be different from today, with grass continuing to decline

Is pollen expected to decrease in Grand Forks 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 Forks?

On 25 June 2026, Grass is the dominant pollen source in Grand Forks. hazel, cypress, and willow are not currently active.

When is pollen season in Grand Forks?
Grand Forks's Red River Valley setting in North Dakota produces one of the latest-starting seasons in the continental US. Elm and cottonwood open the season in late April before grass from surrounding North Dakota farmland peaks through June and July. Mugwort and nettle extend exposure into September, while the flat, open Red River Valley allows pollen to disperse widely and the season ends earlier due to early autumn frosts.
How often is the Grand Forks pollen forecast updated?

The Grand Forks pollen forecast is updated four times daily. See the timestamp below for the most recent update.

Does pollen in Grand Forks 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 Forks 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 Forks, 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.

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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 Forks.

For long term forecasts and maps, see the Airmine app

Download on the App Store Get it on Google Play

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.