Crowley, Louisiana pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Crowley, Louisiana is high; ragweed is high; grass and mugwort are moderate.
Pollen Tomorrow
Tomorrow (21 September 2026) levels are similar to today.
7-Day Trend
Over the next week grass, mugwort, and ragweed 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) | Moderate | 41/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | Moderate | 37/100 |
| Ragweed (Ambrosia) | High | 70/100 |
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) | Moderate | 38/100 | |
| Willow (Salicaceae) | None | 0/100 | — |
| Mugwort (Artemisia) | Moderate | 33/100 | |
| Ragweed (Ambrosia) | High | 69/100 |
Local Environmental Conditions
Crowley's setting on flat rice-farming prairie in south-central Louisiana supports rice fields, crawfish-pond margins, and loblolly pine woodlots as the leading local vegetation, all factoring into the pollen count through the year. Individual yards and gardens around Crowley can still vary somewhat from this general pattern. Microclimates within the area can shift the timing slightly from one neighborhood to the next.
The pollen calendar in Crowley opens with oak and pine starting January before cedar extends the tree season through February. Peak grass pollen arrives in March and April, and ragweed and pigweed extend the season into October. Mild winters along the Gulf mean the pollen season starts earlier and runs longer than further north.
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Frequently Asked Questions About Pollen in Louisiana
Is pollen high in Crowley, Louisiana right now?
On 20 September 2026, overall pollen levels in Crowley, Louisiana are high. Ambrosia is the main contributor to airborne pollen, while artemisia and grass remain at lower levels
Will pollen levels change in Crowley, Louisiana tomorrow?
On 21 September 2026, pollen conditions in Crowley, Louisiana will be similar to today, with ambrosia at high levels, artemisia at moderate levels, grass at moderate levels
Is pollen expected to decrease in Crowley, Louisiana 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 Crowley, Louisiana?
On 20 September 2026, Ambrosia is the dominant pollen source in Crowley, Louisiana. artemisia and grass are also present but at lower levels.
When is pollen season in Crowley, Louisiana?
How often is the Crowley, Louisiana pollen forecast updated?
The Crowley, Louisiana pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Crowley, Louisiana 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 Crowley, Louisiana 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 Crowley, Louisiana, 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. |
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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).
