Chelan pollen forecast - today, tomorrow and the week ahead
Today (9 August) pollen in Chelan is medium; mugwort is medium; grass and ragweed are low. Tomorrow (10 August 2026) levels are similar. 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 Chelan, on the shore of Lake Chelan in the eastern Cascades, is dominated by ponderosa pine and orchard trees, with sagebrush hillsides adding further seasonal pollen exposure. Individual yards and gardens around Chelan can still vary somewhat from this general pattern. Microclimates within the area can shift the timing slightly from one neighborhood to the next.
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
2/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
Medium
29/100
-
Ragweed (Ambrosia):
Low
12/100
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):
Low
8/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
Medium
36/100
-
Ragweed (Ambrosia):
Low
21/100
Air quality in Chelan
View air qualityFrequently Asked Questions
Is pollen high in Chelan right now?
On 9 August 2026, overall pollen levels in Chelan are moderate. Artemisia is the main contributor to airborne pollen, while ambrosia and grass remain at lower levels
Will pollen levels change in Chelan tomorrow?
On 10 August 2026, pollen conditions in Chelan will be similar to today, with ambrosia at low levels, artemisia at medium levels, grass at low levels
Is pollen expected to decrease in Chelan this week?
According to the five-day outlook, ambrosia, artemisia, and grass pollen levels will increase later in the week.
Which pollen types are currently active in Chelan?
On 9 August 2026, Artemisia is the dominant pollen source in Chelan. ambrosia and grass are also present but at lower levels. cypress are not currently active.
When is pollen season in Chelan?
How often is the Chelan pollen forecast updated?
The Chelan pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Chelan 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 Chelan 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 Chelan, 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 Chelan.
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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.