Pasco pollen forecast - today, tomorrow and the week ahead

Today (25 June) pollen in Pasco is none Tomorrow (26 June 2026) levels are similar. 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

Pasco's Columbia Basin setting features sagebrush, cottonwood, and elm as the main pollen sources, with exposure varying considerably between the irrigated agricultural and residential areas and the drier sagebrush steppe on the surrounding Columbia Basin. The Columbia River corridor is a particularly significant local tree pollen source, while the irrigation-supported vegetation in the city contrasts sharply with the surrounding native desert landscape.

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):

    None

    0/100

  • 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):

    None

    0/100

  • Willow (Salicaceae):

    None

    0/100

Frequently Asked Questions

Is pollen high in Pasco right now?

Currently, there is no significant pollen in Pasco.

Will pollen levels change in Pasco tomorrow?

On 26 June 2026, pollen conditions in Pasco will be similar to today with no significant pollen expected.

Is pollen expected to decrease in Pasco this week?

According to the five-day outlook, grass pollen levels will increase later in the week.

Which pollen types are currently active in Pasco?

On 25 June 2026, there are no significant pollen types in Pasco.

When is pollen season in Pasco?
Pasco's Columbia Basin setting in eastern Washington produces a season opening in March with sagebrush and elm before bunchgrass peaks through May and June. Mugwort from surrounding irrigated Columbia Basin farmland extends exposure into September, while the dry high desert climate means the season is more compressed and less interrupted than in western Washington cities.
How often is the Pasco pollen forecast updated?

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

Does pollen in Pasco 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 Pasco 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 Pasco, 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, 09:00 CET (Data is updated four times daily.)

This page provides the latest public pollen forecast for Pasco.

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.