Walla Walla pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (16 September) pollen in Walla Walla is high; cypress is high; acacia and eucalyptus are low.
Pollen Tomorrow
Tomorrow (17 September 2026) cypress remains high, acacia increasing, eucalyptus increasing.
7-Day Trend
Over the next week grass will increase; acacia, cypress, and eucalyptus will decrease.
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Pollen Risk
Today - 16 September
| Pollen species | Level | Value |
|---|---|---|
| Acacia (Acacia) | Low | 21/100 |
| Cypress (Cupressaceae) | High | 51/100 |
| Eucalyptus (Myrtaceae) | Low | 15/100 |
| Grass (Poaceae) | None | 0/100 |
Tomorrow - 17 September
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Acacia (Acacia) | Moderate | 35/100 | |
| Cypress (Cupressaceae) | High | 64/100 | |
| Eucalyptus (Myrtaceae) | Moderate | 29/100 | |
| Grass (Poaceae) | None | 0/100 |
Local Environmental Conditions
Located just around the area, this area has a waterway lined with river oak, a wind-pollinated species and one of the more potent allergen sources along Australian creeks and rivers. Located within the neighborhood, this area has a stand of eucalypt with wattle through the understorey, wattle ranked among the region's sharpest allergens.
River oak along the water gets the season underway before other species, climbing steadily from mid-winter into September. The woodland's eucalypt and wattle trees become the main pollen source as wattle flowers, reaching maximum intensity across the August-September window. Grass pollen counts rise through spring, reaching their peak around November, before staying elevated through the summer months into late January.
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Resource Hub
Pollen forecast neighborhoods 2 neighborhoods
Frequently Asked Questions About Pollen in New South Wales
Is pollen high in Walla Walla right now?
On 16 September 2026, overall pollen levels in Walla Walla are high. Cypress is the main contributor to airborne pollen, while acacia and myrtle remain at lower levels
Will pollen levels change in Walla Walla tomorrow?
On 17 September 2026, pollen conditions in Walla Walla will be different from today, with cypress at high levels and acacia, myrtle increasing
Is pollen expected to decrease in Walla Walla this week?
According to the five-day outlook, acacia, cypress, and myrtle pollen levels are expected to gradually decrease, while grass pollen will increase, suggesting mixed conditions later in the week.
Which pollen types are currently active in Walla Walla?
On 16 September 2026, Cypress is the dominant pollen source in Walla Walla. acacia and myrtle are also present but at lower levels. grass 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 scores represent risk levels, not direct measurements of pollen or air pollutant concentrations. Higher scores indicate higher risk. Pollen and air quality use different thresholds.
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).
