Winter Gardens Pollen Forecast - Today, Tomorrow and the Week Ahead
Pollen Today
Today (7 October) pollen in Winter Gardens is high; ragweed is high; grass, mold (alternaria), and mold (cladosporium) are low.
Pollen Tomorrow
Tomorrow (8 October 2026) grass remains low, mold (alternaria) remains low, mold (cladosporium) remains low, ragweed declining.
7-Day Trend
Over the next week mugwort and mold (cladosporium) will increase; grass, ragweed, and mold (alternaria) will decrease.
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Pollen Risk
Today - 7 October
| Pollen species | Level | Value |
|---|---|---|
| Alder (Alnus) | None | 0/100 |
| Birch (Betula) | None | 0/100 |
| Hazel (Corylus) | None | 0/100 |
| Cypress (Cupressaceae) | None | 0/100 |
| Grass (Poaceae) | Low | 14/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | None | 0/100 |
| Ragweed (Ambrosia) | High | 51/100 |
| Alternaria | Low | 13/100 |
| Cladosporium | Low | 14/100 |
Tomorrow - 8 October
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Alder (Alnus) | None | 0/100 | — |
| Birch (Betula) | None | 0/100 | — |
| Hazel (Corylus) | None | 0/100 | — |
| Cypress (Cupressaceae) | None | 0/100 | — |
| Grass (Poaceae) | Low | 13/100 | |
| Willow (Salicaceae) | None | 0/100 | — |
| Mugwort (Artemisia) | None | 0/100 | |
| Ragweed (Ambrosia) | Moderate | 49/100 | |
| Alternaria | Low | 13/100 | |
| Cladosporium | Low | 14/100 |
Local Environmental Conditions
The heart of Winter Gardens is surrounded mainly by built-up land, with some woodland and scrubland. Among allergenic trees nearby, oak leads, followed by plane tree and poplar. Grass pollen is significant here, and ragweed and pigweed contribute weed pollen. Around here, street trees, gardens and lawns supply most pollen in the built-up parts.
Oak, plane tree and poplar lead the season in mid-spring, as temperatures climb to around 15°C, and tree pollen reaches its peak. Grasses take over in late spring and keep pollen in the air into early fall. The season closes with ragweed and pigweed from late summer into mid-fall. Rain is heaviest in spring, often giving short breaks from high pollen levels.
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Frequently Asked Questions About Pollen in California
Is pollen high in Winter Gardens right now?
On 7 October 2026, overall pollen levels in Winter Gardens are high. Ambrosia is the main contributor to airborne pollen, while grass remain at lower levels
Will pollen levels change in Winter Gardens tomorrow?
On 8 October 2026, pollen conditions in Winter Gardens will be different from today, with grass at low levels and ambrosia continuing to decline
Is pollen expected to decrease in Winter Gardens this week?
According to the five-day outlook, ambrosia and grass pollen levels are expected to gradually decrease, while artemisia pollen will increase, suggesting mixed conditions later in the week.
Which pollen types are currently active in Winter Gardens?
On 7 October 2026, Ambrosia is the dominant pollen source in Winter Gardens. grass are also present but at lower levels. artemisia are not currently active.
When is pollen season in Winter Gardens?
How often is the Winter Gardens pollen forecast updated?
The Winter Gardens pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Winter Gardens 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 Winter Gardens 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 Winter Gardens, 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).
