Mount Helen pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Mount Helen is high; eucalyptus is high; acacia and cypress are low.
Pollen Tomorrow
Tomorrow (21 September 2026) eucalyptus declining, acacia no longer expected, cypress no longer expected.
7-Day Trend
Over the next week acacia, cypress, eucalyptus, and grass will increase.
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Pollen Risk
Today - 20 September
| Pollen species | Level | Value |
|---|---|---|
| Acacia (Acacia) | Low | 11/100 |
| Cypress (Cupressaceae) | Low | 8/100 |
| Eucalyptus (Myrtaceae) | High | 62/100 |
| Grass (Poaceae) | None | 0/100 |
Tomorrow - 21 September
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Acacia (Acacia) | None | 0/100 | |
| Cypress (Cupressaceae) | None | 0/100 | |
| Eucalyptus (Myrtaceae) | Moderate | 33/100 | |
| Grass (Poaceae) | None | 0/100 |
Local Environmental Conditions
River oak crowds the water's edge here, a well-known contributor to local casuarina pollen counts, in the wider area. A canopy of eucalypt threaded with wattle, wattle chief among them for allergenic potency here, within the neighborhood's edge. This area, within the neighborhood, has green space with maintained lawn and planted plane trees, both contributing to seasonal pollen counts.
The bank's river oak kicks off the pollen season ahead of the rest, reaching its high point sometime in late winter or early spring. As spring approaches, eucalypt and wattle in the nearby woodland become the dominant source, climbing steadily through late winter to a peak in August or September. Grass pollen rises through spring toward a November high point, holding through the summer months before tapering off by late February.
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Pollen forecast neighborhoods 1 neighborhood
Frequently Asked Questions About Pollen in Victoria
Is pollen high in Mount Helen right now?
On 20 September 2026, overall pollen levels in Mount Helen are high. Myrtle is the main contributor to airborne pollen, while acacia and cypress remain at lower levels
Will pollen levels change in Mount Helen tomorrow?
On 21 September 2026, pollen conditions in Mount Helen will be different from today, with myrtle continuing to decline
Is pollen expected to decrease in Mount Helen this week?
According to the five-day outlook, acacia, cypress, myrtle, and grass pollen levels will increase later in the week.
Which pollen types are currently active in Mount Helen?
On 20 September 2026, Myrtle is the dominant pollen source in Mount Helen. acacia and cypress are also present but at lower levels. grass are not currently active.
When is pollen season in Mount Helen?
How often is the Mount Helen pollen forecast updated?
The Mount Helen pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Mount Helen 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 Mount Helen 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 Mount Helen, 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).
