Williams Pass & OHV Park pollen forecast - today, tomorrow and the week ahead
Today (30 August) pollen in Williams Pass & OHV Park is moderate; grass and ragweed are moderate; mugwort is low. Tomorrow (31 August 2026) levels are similar - grass remains moderate, ragweed remains moderate, mugwort 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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Here, within easy reach, hazel and willow take root along the waterway, both prolific contributors to early pollen counts. This area, just outside the immediate area, has the tree cover here leans heavily on oak and birch, both key drivers of spring pollen. Small shifts in elevation or soil type can move these figures a little either way.
Today - 30 August
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
None
0/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
None
0/100
-
Grass (Poaceae):
Moderate
30/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
Low
24/100
-
Ragweed (Ambrosia):
Moderate
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 - 31 August
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
None
0/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
None
0/100
-
Grass (Poaceae):
Moderate
33/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
Moderate
26/100
-
Ragweed (Ambrosia):
Moderate
46/100
Air quality in Williams Pass & OHV Park
View air qualityFrequently Asked Questions
Is pollen high in Williams Pass & OHV Park right now?
On 30 August 2026, overall pollen levels in Williams Pass & OHV Park are moderate. Grass is the main contributor to airborne pollen, while ambrosia and artemisia remain at lower levels
Will pollen levels change in Williams Pass & OHV Park tomorrow?
On 31 August 2026, pollen conditions in Williams Pass & OHV Park will be different from today, with grass at moderate levels, ambrosia at moderate levels and artemisia increasing
Is pollen expected to decrease in Williams Pass & OHV Park this week?
According to the five-day outlook, artemisia, grass, and ambrosia pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.
Which pollen types are currently active in Williams Pass & OHV Park?
On 30 August 2026, Grass is the dominant pollen source in Williams Pass & OHV Park. ambrosia and artemisia are also present but at lower levels. cypress are not currently active.
When is pollen season in Williams Pass & OHV Park?
How often is the Williams Pass & OHV Park pollen forecast updated?
The Williams Pass & OHV Park pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Williams Pass & OHV Park 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 Williams Pass & OHV Park 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 Williams Pass & OHV Park, 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?
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Data provided by Airmine — Last update: 30 August 2026 at 14:32 CEST (Data is updated four times daily.)
This page provides the latest public pollen forecast for Williams Pass & OHV Park.
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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.
Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.