Forest Ranch Pollen Forecast - Today, Tomorrow and the Week Ahead
Pollen Today
Today (7 October) pollen in Forest Ranch is moderate; mold (cladosporium) is moderate; grass, mugwort, ragweed, and mold (alternaria) are low.
Pollen Tomorrow
Tomorrow (8 October 2026) levels are similar to today.
7-Day Trend
Over the next week grass and mugwort will increase; ragweed, mold (alternaria), and mold (cladosporium) 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 | 9/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | Low | 6/100 |
| Ragweed (Ambrosia) | Low | 20/100 |
| Alternaria | Low | 23/100 |
| Cladosporium | Moderate | 28/100 |
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 | 6/100 | |
| Willow (Salicaceae) | None | 0/100 | — |
| Mugwort (Artemisia) | Low | 4/100 | |
| Ragweed (Ambrosia) | Low | 18/100 | |
| Alternaria | Low | 21/100 | |
| Cladosporium | Moderate | 28/100 |
Local Environmental Conditions
Forest Ranch is heavily wooded, with some open grassland. Along a watercourse nearby, trees, shrubs and reeds grow in the damper ground and add their own pollen. Woodland on all sides makes trees an important local pollen source. Grass pollen adds noticeably to the overall load. Roadside verges and patches of open ground provide further room for grasses and weeds.
Through the year, trees are the first to release pollen, with a peak around early spring. Grass pollen follows, highest around late spring and gone by midsummer. The season closes with a lower weed peak from early summer into early fall, mostly from roadside and field-edge plants. Here, temperatures range from around 5°C in the coldest month to around 30°C in the warmest.
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Pollen forecast neighborhoods 2 neighborhoods
Frequently Asked Questions About Pollen in California
Is pollen high in Forest Ranch right now?
On 7 October 2026, overall pollen levels in Forest Ranch are low. Grass is the main contributor to airborne pollen, while ambrosia and artemisia remain at lower levels
Will pollen levels change in Forest Ranch tomorrow?
On 8 October 2026, pollen conditions in Forest Ranch will be similar to today, with grass at low levels, ambrosia at low levels, artemisia at low levels
Is pollen expected to decrease in Forest Ranch this week?
According to the five-day outlook, ambrosia pollen levels are expected to gradually decrease, while grass and artemisia pollen will increase, suggesting mixed conditions later in the week.
Which pollen types are currently active in Forest Ranch?
On 7 October 2026, Grass is the dominant pollen source in Forest Ranch. ambrosia and artemisia are also present but at lower levels.
When is pollen season in Forest Ranch?
How often is the Forest Ranch pollen forecast updated?
The Forest Ranch pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Forest Ranch 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 Forest Ranch 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 Forest Ranch, 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).
