Weiser pollen forecast — Downtown Weiser neighborhood

On 9 August 2026, overall pollen levels in Weiser are low. Artemisia is the main contributor to airborne pollen

On 10 August 2026, pollen conditions in Weiser will be different from today, with ambrosia at low levels, artemisia at low levels

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

On 9 August 2026, Artemisia is the dominant pollen source in Weiser. ambrosia, cypress, and grass are not currently active.

As a neighborhood within Weiser, Downtown Weiser follows the same seasonal pollen curve, opening with juniper and cottonwood from March before ash extends the tree season through April. Grass follows, peaking through May and June, while grass and sagebrush extend exposure into September. Low humidity and high elevation mean pollen disperses easily once released throughout the year.

The Weiser 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 Weiser, 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.