Tucson pollen forecast — Saguaro National Park neighborhood

Currently, there is no significant pollen in Tucson.

On 17 July 2026, pollen conditions in Tucson 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 Tucson.

Tucson's regional pollen pattern holds at Saguaro National Park, with palo verde and mesquite first appearing in January then mulberry follows, running through February. Grass follows, peaking through March and April, while a second grass and weed peak follows the summer monsoon rains from July through September. The hot desert climate concentrates the main spring season, with little rainfall to interrupt pollen release, consistent with the wider Tucson area.

The Tucson 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 Tucson, 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.