Bismarck pollen forecast — North Dakota State Capitol neighborhood

On 16 July 2026, overall pollen levels in Bismarck are moderate. Grass is the main contributor to airborne pollen

On 17 July 2026, pollen conditions in Bismarck will be different from today, with grass continuing to decline

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

On 16 July 2026, Grass is the dominant pollen source in Bismarck. oak, willow, alder, ambrosia, artemisia, birch, and cypress are not currently active.

North Dakota State Capitol sees the same pollen timeline as the rest of Bismarck, beginning with elm and cottonwood in March with ash taking the lead through April. A grass pollen peak follows through May and June; a strong ragweed peak follows in late summer into September. Surrounding farmland is a major contributor to both the spring grass peak and the late-summer ragweed season, which shapes conditions at North Dakota State Capitol much as it does elsewhere in Bismarck.

The Bismarck 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 Bismarck, 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.