Chino Hills pollen forecast - today, tomorrow and the week ahead

Today (25 June) pollen in Chino Hills 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

Chino Hills's inland San Bernardino County hillside setting features chaparral, oak, and olive as the main tree pollen sources, with exposure varying considerably between the steep chaparral-covered hillsides and the more built-up valley floor. The surrounding chaparral and scrub oak slopes are particularly significant local sources, creating distinct pollen gradients between the elevated hillside and the denser development in the valley areas.

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 Chino Hills right now?

Currently, there is no significant pollen in Chino Hills.

Will pollen levels change in Chino Hills tomorrow?

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

Is pollen expected to decrease in Chino Hills this week?

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

Which pollen types are currently active in Chino Hills?

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

When is pollen season in Chino Hills?
Chino Hills's inland Southern California setting produces a season opening in January with olive and mustard before grass from surrounding Inland Empire land peaks through March and April. Mugwort extends exposure into September, while the hot, dry inland climate concentrates the main season in spring and the Santa Ana winds can periodically transport pollen across the hills.
How often is the Chino Hills pollen forecast updated?

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

Does pollen in Chino Hills 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 Chino Hills 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 Chino Hills, 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 Chino Hills.

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.