Casa Grande pollen forecast - today, tomorrow and the week ahead

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

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

Casa Grande's Pinal County Arizona Sonoran Desert setting features palo verde, desert senna, and saltbush as the main native pollen sources alongside irrigated agricultural and residential plantings. Exposure varies considerably between the native desert and the intensively irrigated agricultural areas surrounding the city, while the flat desert basin allows pollen to disperse widely and the Santa Cruz River wash and Sacaton Mountains provide local topographic pollen variation.

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

    6/100

  • 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 Casa Grande right now?

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

Will pollen levels change in Casa Grande tomorrow?

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

Is pollen expected to decrease in Casa Grande this week?

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

Which pollen types are currently active in Casa Grande?

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

When is pollen season in Casa Grande?
Casa Grande's Sonoran Desert setting in south-central Arizona produces a season opening in January with palo verde and triangle-leaf bursage before grass from surrounding desert farmland peaks through March and April. Monsoon season from July through September brings a second grass and mugwort peak, while the hot desert climate concentrates the main spring season and the Sacaton Mountains provide local topographic influence.
How often is the Casa Grande pollen forecast updated?

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

Does pollen in Casa Grande 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 Casa Grande 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 Casa Grande, 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, 09:02 CET (Data is updated four times daily.)

This page provides the latest public pollen forecast for Casa Grande.

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.