Williston pollen forecast - today, tomorrow and the week ahead
Today (9 August) pollen in Williston is low; grass, mugwort, and ragweed are low. Tomorrow (10 August 2026) levels are similar - mugwort remains low, ragweed remains low. Over the following five days grass, mugwort, and ragweed will increase. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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The vegetation around Williston, on rolling farmland in the Bakken oil country of northwestern North Dakota, is dominated by wheat fields and prairie grasses, with riverside cottonwood adding further seasonal pollen exposure. Individual yards and gardens around Williston can still vary somewhat from this general pattern. Nearby towns with similar terrain tend to see a broadly similar pattern.
Today - 9 August
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
None
0/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
None
0/100
-
Grass (Poaceae):
Low
5/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
Low
23/100
-
Ragweed (Ambrosia):
Low
24/100
High pollen levels may trigger sneezing, itchy eyes, and congestion. Airmine's neighbourhood estimates use satellites to map local vegetation and a statistical prediction model, updated four times daily.
Tomorrow - 10 August
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
None
0/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
None
0/100
-
Grass (Poaceae):
None
0/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
Low
15/100
-
Ragweed (Ambrosia):
Low
18/100
Air quality in Williston
View air qualityFrequently Asked Questions
Is pollen high in Williston right now?
On 9 August 2026, overall pollen levels in Williston are low. Artemisia is the main contributor to airborne pollen, while grass and ambrosia remain at lower levels
Will pollen levels change in Williston tomorrow?
On 10 August 2026, pollen conditions in Williston will be different from today, with artemisia at low levels, ambrosia at low levels
Is pollen expected to decrease in Williston this week?
According to the five-day outlook, artemisia, grass, and ambrosia pollen levels will increase later in the week.
Which pollen types are currently active in Williston?
On 9 August 2026, Artemisia is the dominant pollen source in Williston. grass and ambrosia are also present but at lower levels. cypress are not currently active.
When is pollen season in Williston?
How often is the Williston pollen forecast updated?
The Williston pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Williston come from nearby or far away?
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.
Are pollen levels in Williston based on measurements or forecasts?
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 Williston, 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.
Want to see pollen forecasts for other cities in United States?
Check pollen in other popular cities:
Data provided by Airmine — Last update: 9 August 2026 at 20:27 CEST (Data is updated four times daily.)
This page provides the latest public pollen forecast for Williston.
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Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.