Crescent City pollen forecast - today, tomorrow and the week ahead
Today (9 August) pollen in Crescent City is high; grass is high; mugwort and ragweed are medium. Tomorrow (10 August 2026) levels are similar - grass remains high, mugwort remains medium, ragweed increasing. 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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Set on the redwood coast at California's northern tip, Crescent City's landscape is defined by coast redwood groves alongside Sitka spruce and coastal scrub, the main contributors to seasonal pollen exposure. Seasonal timing here follows the broader regional pattern typical of this part of the country. The mix of native and introduced species here is fairly typical for this part of the country.
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):
High
57/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
Medium
30/100
-
Ragweed (Ambrosia):
Medium
48/100
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
60/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
Medium
33/100
-
Ragweed (Ambrosia):
High
52/100
Air quality in Crescent City
View air qualityFrequently Asked Questions
Is pollen high in Crescent City right now?
On 9 August 2026, overall pollen levels in Crescent City are high. Grass is the main contributor to airborne pollen, while ambrosia and artemisia remain at lower levels
Will pollen levels change in Crescent City tomorrow?
On 10 August 2026, pollen conditions in Crescent City will be different from today, with grass at high levels, artemisia at medium levels and ambrosia increasing
Is pollen expected to decrease in Crescent City this week?
According to the five-day outlook, grass, ambrosia, and artemisia pollen levels will increase later in the week.
Which pollen types are currently active in Crescent City?
On 9 August 2026, Grass is the dominant pollen source in Crescent City. ambrosia and artemisia are also present but at lower levels. cypress are not currently active.
When is pollen season in Crescent City?
How often is the Crescent City pollen forecast updated?
The Crescent City pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Crescent City 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 Crescent City 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 Crescent City, 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: 10 August 2026 at 02:34 CEST (Data is updated four times daily.)
This page provides the latest public pollen forecast for Crescent City.
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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.