Custer pollen forecast - today, tomorrow and the week ahead
Today (9 August) pollen in Custer is medium; grass, mugwort, and ragweed are medium. Tomorrow (10 August 2026) levels are similar - mugwort remains medium, grass increasing, ragweed increasing. Over the following five days grass, mugwort, and ragweed will decrease. 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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Set on the southern Black Hills near Custer State Park, Custer's landscape is defined by ponderosa pine alongside bur oak and prairie grassland, the main contributors to seasonal pollen exposure. Local parks and open ground tend to see higher pollen counts than the denser urban core. Residents who spend time outdoors around Custer typically notice the shift as each season turns over.
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):
Medium
34/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
Medium
27/100
-
Ragweed (Ambrosia):
Medium
44/100
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):
High
52/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
Medium
42/100
-
Ragweed (Ambrosia):
High
61/100
Air quality in Custer
View air qualityFrequently Asked Questions
Is pollen high in Custer right now?
On 9 August 2026, overall pollen levels in Custer are moderate. Ambrosia is the main contributor to airborne pollen, while artemisia and grass remain at lower levels
Will pollen levels change in Custer tomorrow?
On 10 August 2026, pollen conditions in Custer will be different from today, with artemisia at medium levels and ambrosia, grass increasing
Is pollen expected to decrease in Custer this week?
According to the five-day outlook, ambrosia, artemisia, and grass pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.
Which pollen types are currently active in Custer?
On 9 August 2026, Ambrosia is the dominant pollen source in Custer. artemisia and grass are also present but at lower levels. cypress are not currently active.
When is pollen season in Custer?
How often is the Custer pollen forecast updated?
The Custer pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Custer 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 Custer 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 Custer, 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 Custer.
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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.