League City pollen forecast - today, tomorrow and the week ahead
Today (9 August) pollen in League City is low; grass and ragweed are low. Tomorrow (10 August 2026) levels are similar. Over the following five days grass and ragweed will increase. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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League City's suburban setting south of Houston features oak, pine, and introduced trees along parks and residential streets as the main pollen sources, with exposure varying between these green areas and the more built-up city centre. Surrounding Gulf Coast prairie and the Clear Creek corridor contribute substantial grass and crop pollen, while the flat, low-lying landscape and proximity to Galveston Bay allow pollen to disperse readily across the area.
Today - 9 August
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
None
0/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
None
0/100
-
Grass (Poaceae):
Low
8/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
None
0/100
-
Ragweed (Ambrosia):
Low
22/100
High pollen levels may trigger sneezing, itchy eyes, and congestion. Airmine's neighbourhood estimates use satellites to map local vegetation and a statistical prediction model, updated four times daily.
Tomorrow - 10 August
-
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):
None
0/100
-
Ragweed (Ambrosia):
Low
21/100
Air quality in League City
View air qualityFrequently Asked Questions
Is pollen high in League City right now?
On 9 August 2026, overall pollen levels in League City are low. Grass is the main contributor to airborne pollen, while ambrosia remain at lower levels
Will pollen levels change in League City tomorrow?
On 10 August 2026, pollen conditions in League City will be similar to today, with grass at low levels, ambrosia at low levels
Is pollen expected to decrease in League City this week?
According to the five-day outlook, grass, ambrosia, and artemisia pollen levels will increase later in the week.
Which pollen types are currently active in League City?
On 9 August 2026, Grass is the dominant pollen source in League City. ambrosia are also present but at lower levels. artemisia and cypress are not currently active.
When is pollen season in League City?
How often is the League City pollen forecast updated?
The League City pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in League City 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 League City 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 League City, 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.
Want to see pollen forecasts for other cities in United States?
Check pollen in other popular cities:
Data provided by Airmine — Last update: 9 August 2026 at 20:27 CEST (Data is updated four times daily.)
This page provides the latest public pollen forecast for League City.
Get the full experience in the Airmine app.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.