West Lafayette pollen forecast - today, tomorrow and the week ahead

On 16 July 2026, overall pollen levels in West Lafayette are low. Grass is the main contributor to airborne pollen

On 17 July 2026, pollen conditions in West Lafayette 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, Grass is the dominant pollen source in West Lafayette. willow, alder, ambrosia, artemisia, birch, cypress, and oak are not currently active.

In West Lafayette, pollen season begins with maple and elm starting in March before oak peaks during April. Grass pollen rises through May and June, and ragweed extends the season into September. A humid continental climate drives a sharp spring tree peak and an equally distinct late-summer ragweed run, shaping conditions across the city.

The West Lafayette 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 West Lafayette, 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.