Glen Carbon pollen forecast — Glen Hills neighborhood

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

On 10 August 2026, pollen conditions in Glen Carbon will be similar to today, with artemisia at low levels, grass at low levels, ambrosia at medium levels

According to the five-day outlook, artemisia, grass, and ambrosia pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.

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

Near the bank, hazel and willow lead the seasonal calendar, reaching its high point sometime in late winter or early spring. Woodland oak and birch pick up the pace next, through mid-to-late spring, topping out in the April-to-May stretch. Grass pollen climbs toward a June peak, handing off to ragweed, which peaks from mid-August through October.

The Glen Carbon 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 Glen Carbon, 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.