Bismarck pollen forecast - today, tomorrow and the week ahead

Today (25 June) pollen in Bismarck is low; grass is low. Tomorrow (26 June 2026) levels are similar - grass increasing. Over the following five days grass will decrease. 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

Bismarck's parks and the Missouri River corridor feature elm, cottonwood, and ash as the main tree pollen sources, with exposure varying between these green areas and the more built-up city centre. Surrounding North Dakota prairie and farmland contribute substantial grass and crop pollen, while the flat, open Missouri River valley allows pollen to disperse widely across the city under prevailing westerly winds.

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):

    Low

    25/100

  • 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):

    Medium

    32/100

  • Willow (Salicaceae):

    None

    0/100

Frequently Asked Questions

Is pollen high in Bismarck right now?

On 25 June 2026, overall pollen levels in Bismarck are low. Grass is the main contributor to airborne pollen

Will pollen levels change in Bismarck tomorrow?

On 26 June 2026, pollen conditions in Bismarck will be different from today, with grass increasing

Is pollen expected to decrease in Bismarck this week?

According to the five-day outlook, grass pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.

Which pollen types are currently active in Bismarck?

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

When is pollen season in Bismarck?
Bismarck's pollen season opens with elm and cottonwood from late February, followed by ash through March and April. Grass pollen peaks through May and June, with ragweed extending the season into October. The Missouri River valley channels airflows and concentrates pollen, while surrounding North Dakota prairie and farmland contribute substantial grass and crop pollen under prevailing westerly winds. The cold continental climate means the season starts later than in southern US cities.
How often is the Bismarck pollen forecast updated?

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

Does pollen in Bismarck 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 Bismarck 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 Bismarck, 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?

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Check pollen in other popular cities:

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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 Bismarck.

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.