Twentynine Palms pollen forecast — Roy's Motel and Café neighborhood
Pollen Today
Today (20 September) pollen in Roy's Motel and Café, Twentynine Palms is high; grass, mugwort, and ragweed are high.
Pollen Tomorrow
Tomorrow (21 September 2026) grass remains high, mugwort declining, ragweed declining.
7-Day Trend
Over the next week ragweed will increase; grass and mugwort will decrease.
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Pollen Risk
Today - 20 September
| 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) | High | 68/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | High | 61/100 |
| Ragweed (Ambrosia) | High | 63/100 |
Tomorrow - 21 September
| 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) | High | 51/100 | |
| Willow (Salicaceae) | None | 0/100 | — |
| Mugwort (Artemisia) | Moderate | 44/100 | |
| Ragweed (Ambrosia) | Moderate | 48/100 |
Local Environmental Conditions
This area sits apart from mapped forest, water, or parkland, leaving grass and ragweed as the more probable dominant allergens. Local wind exposure and land use can shift the exact mix slightly from block to block. Actual counts still shift year to year with temperature, rainfall, and prevailing wind. Local readings for the surrounding area tend to follow this same general pattern.
Average temperatures range from about 8°C in January to 31°C in July, and rainfall is low year-round (around 124 mm annually). Pollen activity typically picks up as temperatures climb out of the January low, from around February onward.
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Frequently Asked Questions About Pollen in California
Is pollen high in Twentynine Palms right now?
On 20 September 2026, overall pollen levels in Twentynine Palms are high. Ambrosia is the main contributor to airborne pollen, while artemisia and grass remain at lower levels
Will pollen levels change in Twentynine Palms tomorrow?
On 21 September 2026, pollen conditions in Twentynine Palms will be different from today, with grass at high levels and ambrosia, artemisia continuing to decline
Is pollen expected to decrease in Twentynine Palms this week?
According to the five-day outlook, artemisia and grass pollen levels are expected to gradually decrease, while ambrosia pollen will increase, suggesting mixed conditions later in the week.
Which pollen types are currently active in Twentynine Palms?
On 20 September 2026, Ambrosia is the dominant pollen source in Twentynine Palms. artemisia and grass are also present but at lower levels.
When is pollen season in Twentynine Palms?
How often is the Twentynine Palms pollen forecast updated?
The Twentynine Palms pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Twentynine Palms 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 Twentynine Palms 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 Twentynine Palms, 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).
