Megalong Valley Pollen Forecast - Today, Tomorrow and the Week Ahead
Pollen Today
Today (6 October) pollen in Megalong Valley is moderate; eucalyptus is moderate; mold (alternaria) and mold (cladosporium) are low.
Pollen Tomorrow
Tomorrow (7 October 2026) mold (alternaria) remains low, eucalyptus increasing, mold (cladosporium) increasing, acacia at low levels, cypress at moderate levels.
7-Day Trend
Over the next week acacia, cypress, eucalyptus, and grass will increase; mold (alternaria) and mold (cladosporium) will decrease.
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Pollen Risk
Today - 6 October
| Pollen species | Level | Value |
|---|---|---|
| Acacia (Acacia) | None | 0/100 |
| Cypress (Cupressaceae) | None | 0/100 |
| Eucalyptus (Myrtaceae) | Moderate | 46/100 |
| Grass (Poaceae) | None | 0/100 |
| Alternaria | Low | 4/100 |
| Cladosporium | Low | 18/100 |
Tomorrow - 7 October
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Acacia (Acacia) | Low | 17/100 | |
| Cypress (Cupressaceae) | Moderate | 31/100 | |
| Eucalyptus (Myrtaceae) | High | 70/100 | |
| Grass (Poaceae) | None | 0/100 | |
| Alternaria | Low | 15/100 | |
| Cladosporium | Moderate | 36/100 |
Local Environmental Conditions
Around 94% of the area near the heart of Megalong Valley is woodland. The damp ground beside running water nearby supports trees such as willow, adding to local pollen. Of the trees nearby, willow is the one that matters most for allergies. Grasses are also a significant pollen source here.
Willow leads the season in early spring, as temperatures climb to around 10°C, and tree pollen reaches its peak. Grass pollen follows, peaking in early summer and easing off by late summer. A smaller weed peak follows from early summer into early fall. Fall is the wettest time of year, and heavy showers can bring short breaks in pollen.
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Frequently Asked Questions About Pollen in New South Wales
Is pollen high in Megalong Valley right now?
On 6 October 2026, overall pollen levels in Megalong Valley are moderate. Myrtle is the main contributor to airborne pollen
Will pollen levels change in Megalong Valley tomorrow?
On 7 October 2026, pollen conditions in Megalong Valley will be different from today, with acacia at low levels, cypress at moderate levels and myrtle increasing
Is pollen expected to decrease in Megalong Valley 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 Megalong Valley?
On 6 October 2026, Myrtle is the dominant pollen source in Megalong Valley. acacia, cypress, and grass are not currently active.
When is pollen season in Megalong Valley?
How often is the Megalong Valley pollen forecast updated?
The Megalong Valley pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Megalong Valley 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 Megalong Valley 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 Megalong Valley, 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).
