Three Prong Campground, Rancho Tehama Reserve Pollen Forecast - Today, Tomorrow and the Week Ahead
Pollen Today
Today (7 October) pollen in Three Prong Campground, Rancho Tehama Reserve is moderate; ragweed, mold (alternaria), and mold (cladosporium) are moderate; grass and mugwort are low.
Pollen Tomorrow
Tomorrow (8 October 2026) grass remains low, mugwort remains low, mold (alternaria) remains moderate, mold (cladosporium) remains moderate, ragweed declining.
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 | 8/100 |
| Ragweed (Ambrosia) | Moderate | 26/100 |
| Alternaria | Moderate | 27/100 |
| Cladosporium | Moderate | 31/100 |
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 | 4/100 | |
| Willow (Salicaceae) | None | 0/100 | — |
| Mugwort (Artemisia) | Low | 3/100 | |
| Ragweed (Ambrosia) | Low | 21/100 | |
| Alternaria | Moderate | 31/100 | |
| Cladosporium | Moderate | 31/100 |
Local Environmental Conditions
This location in Rancho Tehama Reserve is heavily wooded. Along a watercourse nearby, trees, shrubs and reeds grow in the damper ground and add their own pollen. In the immediate area, the surrounding woods make trees an important source. Clearings, tracks and woodland edges let grasses and other flowering plants grow among the trees.
The year opens with tree pollen, which is highest around early spring. Grass flowering starts in early spring, is strongest around late spring and winds down by midsummer. Weeds on open ground add a smaller late peak from early summer into early fall. Locally, winters average around 5°C and summers around 30°C, with most rain falling in the cooler months.
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Frequently Asked Questions About Pollen in California
Is pollen high in Rancho Tehama Reserve right now?
On 7 October 2026, overall pollen levels in Rancho Tehama Reserve are moderate. Ambrosia is the main contributor to airborne pollen, while artemisia and grass remain at lower levels
Will pollen levels change in Rancho Tehama Reserve tomorrow?
On 8 October 2026, pollen conditions in Rancho Tehama Reserve will be different from today, with artemisia at low levels, grass at low levels and ambrosia continuing to decline
Is pollen expected to decrease in Rancho Tehama Reserve this week?
According to the five-day outlook, ambrosia pollen levels are expected to gradually decrease, while artemisia and grass pollen will increase, suggesting mixed conditions later in the week.
Which pollen types are currently active in Rancho Tehama Reserve?
On 7 October 2026, Ambrosia is the dominant pollen source in Rancho Tehama Reserve. artemisia and grass are also present but at lower levels.
When is pollen season in Rancho Tehama Reserve?
How often is the Rancho Tehama Reserve pollen forecast updated?
The Rancho Tehama Reserve pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Rancho Tehama Reserve 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 Rancho Tehama Reserve 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 Rancho Tehama Reserve, 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. |
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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).
