Coeur d'Alene pollen forecast - today, tomorrow and the week ahead

On 9 August 2026, overall pollen levels in Coeur d'Alene are moderate. Ambrosia is the main contributor to airborne pollen, while grass and artemisia remain at lower levels

On 10 August 2026, pollen conditions in Coeur d'Alene will be similar to today, with grass at low levels, ambrosia at medium levels, artemisia at low levels

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

On 9 August 2026, Ambrosia is the dominant pollen source in Coeur d'Alene. grass and artemisia are also present but at lower levels. cypress are not currently active.

Coeur d'Alene's pollen season opens with birch and pine from late February, followed by western red cedar through March and April. Grass pollen peaks through June and July. The Lake Coeur d'Alene position means onshore lake breezes can periodically moderate pollen levels, while surrounding Idaho Panhandle woodland and the Bitterroot Mountain foothills contribute substantial tree pollen. The season is shorter than in southern US cities due to the northern inland climate.

The Coeur d'Alene 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 Coeur d'Alene, 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.