Walla Walla Pollen Forecast - Today, Tomorrow and the Week Ahead
Pollen Today
Today (6 October) pollen in Walla Walla is moderate; mold (cladosporium) is moderate; cypress and mold (alternaria) are low.
Pollen Tomorrow
Tomorrow (7 October 2026) mold (alternaria) remains low, cypress increasing, mold (cladosporium) declining, acacia at moderate levels, eucalyptus at low levels, grass at low levels.
7-Day Trend
Over the next week cypress, grass, mold (alternaria), and mold (cladosporium) will increase; acacia and eucalyptus will decrease.
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Pollen Risk
Today - 6 October
| Pollen species | Level | Value |
|---|---|---|
| Acacia (Acacia) | None | 0/100 |
| Cypress (Cupressaceae) | Low | 20/100 |
| Eucalyptus (Myrtaceae) | None | 0/100 |
| Grass (Poaceae) | None | 0/100 |
| Alternaria | Low | 18/100 |
| Cladosporium | Moderate | 27/100 |
Tomorrow - 7 October
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Acacia (Acacia) | Moderate | 27/100 | |
| Cypress (Cupressaceae) | High | 51/100 | |
| Eucalyptus (Myrtaceae) | Low | 21/100 | |
| Grass (Poaceae) | Low | 17/100 | |
| Alternaria | Low | 16/100 | |
| Cladosporium | Low | 23/100 |
Local Environmental Conditions
The area around the center of Walla Walla is a mix of open grassland and farmland, plus some woodland. Close to a stream or river, riverside vegetation contributes to what is in the air. Grasses and weeds such as pigweed round out the local mix. Field margins, fallow strips and pasture around the farmland add further grass and weed pollen.
Flowering trees bring the first pollen of the year in early spring. Grasses take over in late spring, with temperatures around 20°C, and their pollen lingers into early fall. The season closes with pigweed from early summer into early fall. Summer is the wettest time of year, and heavy showers can bring short breaks in pollen. By early winter, as temperatures fall to around 10°C, pollen levels are low again.
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Pollen forecast neighborhoods 2 neighborhoods
Frequently Asked Questions About Pollen in New South Wales
Is pollen high in Walla Walla right now?
On 6 October 2026, overall pollen levels in Walla Walla are low. Cypress is the main contributor to airborne pollen
Will pollen levels change in Walla Walla tomorrow?
On 7 October 2026, pollen conditions in Walla Walla will be different from today, with myrtle at low levels, grass at low levels, acacia at moderate levels and cypress increasing
Is pollen expected to decrease in Walla Walla this week?
According to the five-day outlook, myrtle and acacia pollen levels are expected to gradually decrease, while cypress and grass pollen will increase, suggesting mixed conditions later in the week.
Which pollen types are currently active in Walla Walla?
On 6 October 2026, Cypress is the dominant pollen source in Walla Walla. myrtle, grass, and acacia are not currently active.
When is pollen season in Walla Walla?
How often is the Walla Walla pollen forecast updated?
The Walla Walla pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Walla Walla 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 Walla Walla 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 Walla Walla, 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.
Understanding the Scale
The 0–100 pollen scores represent risk levels, not direct pollen measurements. Higher scores indicate higher risk.
Pollen
| None | 0 | No or negligible risk of exposure. Pollen/mold exposure is expected to be minimal. |
| Low | 0-25 | Low risk of exposure. Small amounts of pollen or mold spores may be present. |
| Moderate | 25-50 | Moderate risk of exposure. Pollen/mold exposure is expected to be noticeable. |
| High | 50-75 | High risk of exposure. Elevated pollen/mold exposure is expected. |
| Very High | 75-100 | Very high risk of exposure. Pollen/mold exposure is expected to be at or near its highest levels. |
Get More in the Airmine Pollen app
Get 15-day pollen forecasts with morning, afternoon and evening detail, plus 5-day air quality forecasts. Explore interactive pollen risk maps, estimated pollen season start, route profiles and a symptoms diary.
Features and forecast availability vary by region. Currently covering Europe, the contiguous US, southern Canada, South Africa, Australia, Indonesia (Java & Bali), Brazil, Paraguay, Uruguay and the Buenos Aires area.
Developed with support from the European Space Agency (ESA) Business Applications and Space Solutions (BASS).
