Riverside Crest, Houston Pollen Forecast - Today, Tomorrow and the Week Ahead
Pollen Today
Today (10 October) pollen in Riverside Crest, Houston is moderate; grass and mold (cladosporium) are moderate; ragweed and mold (alternaria) are low.
Pollen Tomorrow
Tomorrow (11 October 2026) grass remains moderate, mold (alternaria) remains low, ragweed increasing, mold (cladosporium) declining, mugwort at low levels.
7-Day Trend
Over the next week grass, mugwort, ragweed, mold (alternaria), and mold (cladosporium) will decrease.
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Pollen Risk
Today - 10 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) | Moderate | 29/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | None | 0/100 |
| Ragweed (Ambrosia) | Low | 23/100 |
| Mold (Alternaria) | Low | 23/100 |
| Mold (Cladosporium) | Moderate | 27/100 |
Tomorrow - 11 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) | Moderate | 37/100 | |
| Willow (Salicaceae) | None | 0/100 | — |
| Mugwort (Artemisia) | Low | 5/100 | |
| Ragweed (Ambrosia) | Moderate | 31/100 | |
| Mold (Alternaria) | Low | 21/100 | |
| Mold (Cladosporium) | Low | 24/100 |
Local Environmental Conditions
The area around this site in Houston is mostly woodland, with some open water. Oak heads the list of allergenic trees nearby, ahead of elm and plane tree. Grasses also feature strongly, alongside ragweed and plantain among the weeds. Roadside verges and patches of open ground provide further room for grasses and weeds.
First to flower is elm, in late winter. Oak and plane tree follow in early spring, as temperatures climb to around 20°C, and tree pollen reaches its peak. Grasses take over in mid-spring and keep pollen in the air into mid-fall. Later, ragweed and plantain keep weed pollen in the air from late summer into mid-fall. Mold spores join in through spring, when damp, warm spells let them thrive.
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Frequently Asked Questions About Pollen in Texas
Is pollen high in Houston right now?
On 10 October 2026, overall pollen levels in Houston are moderate. Grass is the main contributor to airborne pollen, while ambrosia remain at lower levels
Will pollen levels change in Houston tomorrow?
On 11 October 2026, pollen conditions in Houston will be different from today, with artemisia at low levels, grass at moderate levels and ambrosia increasing
Is pollen expected to decrease in Houston this week?
According to the five-day outlook, ambrosia, artemisia, and grass pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.
Which pollen types are currently active in Houston?
On 10 October 2026, Grass is the dominant pollen source in Houston. ambrosia are also present but at lower levels. artemisia are not currently active.
When is pollen season in Houston?
How often is the Houston pollen forecast updated?
The Houston pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Houston 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 Houston 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 Houston, 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).
