Catalina Foothills pollen forecast - today, tomorrow and the week ahead

Currently, there is no significant pollen in Catalina Foothills.

On 17 July 2026, pollen conditions in Catalina Foothills will be similar to today with no significant pollen expected.

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

On 16 July 2026, there are no significant pollen types in Catalina Foothills.

Catalina Foothills's Sonoran Desert suburban setting north of Tucson produces a season opening in January with palo verde and desert willow before grass from surrounding desert grassland peaks through March and April. Monsoon season from July through September brings a second grass and mugwort peak, while the elevated foothills setting means the season begins slightly later than in lower Tucson valley areas throughout.

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

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.

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 Catalina Foothills, 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.