Brownsville pollen forecast — Gladys Porter Zoo neighborhood

On 16 July 2026, overall pollen levels in Brownsville are low. Ambrosia is the main contributor to airborne pollen, while cypress remain at lower levels

On 17 July 2026, pollen conditions in Brownsville will be different from today, with ambrosia at low levels, cypress at low levels, grass at low levels

According to the five-day outlook, cypress and grass pollen levels are expected to gradually decrease, while ambrosia pollen will increase, suggesting mixed conditions later in the week.

On 16 July 2026, Ambrosia is the dominant pollen source in Brownsville. cypress are also present but at lower levels. oak, willow, alder, artemisia, birch, and grass are not currently active.

As a landmark within Brownsville, Gladys Porter Zoo follows the same seasonal pollen curve, opening with mountain cedar from December then oak and elm builds through March. Peak grass pollen arrives in April and May, and ragweed extends the season into October. The intense December-through-February mountain cedar season is a distinctive feature of this part of Texas, consistent with the wider Brownsville area.

The Brownsville 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 Brownsville, 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.