Aloha pollen forecast - today, tomorrow and the week ahead
Today (25 June) pollen in Aloha is none Tomorrow (26 June 2026) levels are similar - grass at low levels. Over the following five days grass will increase. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Aloha's Washington County Oregon Portland suburban setting features bigleaf maple, red alder, and Douglas fir as the main tree pollen sources, with exposure varying between the wooded residential areas along Beaverton Creek and the more built-up commercial corridors along TV Highway. The Tualatin River floodplain to the south provides locally significant green space, while the wet Pacific oceanic climate provides very frequent rainfall interruptions and the Tualatin Valley's agricultural fringe extends grass pollen throughout summer.
Today - 25 June
-
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
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 - 26 June
-
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
Frequently Asked Questions
Is pollen high in Aloha right now?
Currently, there is no significant pollen in Aloha.
Will pollen levels change in Aloha tomorrow?
On 26 June 2026, pollen conditions in Aloha will be different from today, with grass at low levels
Is pollen expected to decrease in Aloha this week?
According to the five-day outlook, grass pollen levels will increase later in the week.
Which pollen types are currently active in Aloha?
On 25 June 2026, there are no significant pollen types in Aloha.
When is pollen season in Aloha?
How often is the Aloha pollen forecast updated?
The Aloha pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Aloha 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 Aloha 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 Aloha, 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: 25 Jun 2026, 09:01 CET (Data is updated four times daily.)
This page provides the latest public pollen forecast for Aloha.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.