Idaho Falls pollen forecast - today, tomorrow and the week ahead

Today (25 June) pollen in Idaho Falls is low; grass is low. Tomorrow (26 June 2026) levels are similar. 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

Idaho Falls' parks, including Tautphaus Park and the Snake River corridor, feature cottonwood, birch, and ash as the main tree pollen sources, with exposure varying between these green areas and the more built-up city centre. Surrounding eastern Idaho farmland and the Snake River Plain contribute substantial grass and sagebrush pollen, while the valley setting channels airflows and concentrates pollen across the city.

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

    5/100

  • 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

    25/100

  • Willow (Salicaceae):

    None

    0/100

Frequently Asked Questions

Is pollen high in Idaho Falls right now?

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

Will pollen levels change in Idaho Falls tomorrow?

On 26 June 2026, pollen conditions in Idaho Falls will be similar to today, with grass at low levels

Is pollen expected to decrease in Idaho Falls this week?

According to the five-day outlook, grass pollen levels are expected to gradually decrease, while willow pollen will increase, suggesting mixed conditions later in the week.

Which pollen types are currently active in Idaho Falls?

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

When is pollen season in Idaho Falls?
Idaho Falls' pollen season opens with cottonwood and birch from late February, followed by ash through March and April. Grass pollen peaks through May and June. The enclosed Snake River valley setting can concentrate pollen under calm spring conditions, while surrounding eastern Idaho farmland and the high desert landscape contribute substantial grass and sagebrush pollen. The semi-arid climate means fewer rainfall interruptions than in wetter US cities.
How often is the Idaho Falls pollen forecast updated?

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

Does pollen in Idaho Falls 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 Idaho Falls 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 Idaho Falls, 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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Data provided by Airmine — Last update: 25 Jun 2026, 09:02 CET (Data is updated four times daily.)

This page provides the latest public pollen forecast for Idaho Falls.

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.