St. Louis pollen forecast — Grand Center Arts District neighborhood
Today (25 June) pollen in Grand Center Arts District, St. Louis is low; cypress and grass are low. Tomorrow (26 June 2026) levels are similar - grass remains low. Over the following five days cypress and grass will increase. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Grand Center Arts District is a gateway City with sycamore, oak, and cottonwood along the Mississippi. The Gateway Arch grounds feature extensive lawn and plantings. Cottonwood is dramatic in May; ragweed through September makes St. Louis one of the US's harder allergy cities.
Today - 25 June
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
None
0/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
Low
1/100
-
Grass (Poaceae):
Low
11/100
-
Willow (Salicaceae):
None
0/100
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 - 26 June
-
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
Other Landmarks in St. Louis
Frequently Asked Questions
Is pollen high in St. Louis right now?
On 25 June 2026, overall pollen levels in St. Louis are low. Grass is the main contributor to airborne pollen, while cypress remain at lower levels
Will pollen levels change in St. Louis tomorrow?
On 26 June 2026, pollen conditions in St. Louis will be different from today, with grass at low levels
Is pollen expected to decrease in St. Louis this week?
According to the five-day outlook, grass and cypress pollen levels will increase later in the week.
Which pollen types are currently active in St. Louis?
On 25 June 2026, Grass is the dominant pollen source in St. Louis. cypress are also present but at lower levels. willow and hazel are not currently active.
How often is the St. Louis pollen forecast updated?
The St. Louis pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in St. Louis 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 St. Louis 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 St. Louis, 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: 25 Jun 2026, 09:01 CET (Data is updated four times daily.)
This page provides the latest public pollen forecast for Grand Center Arts District, St. Louis.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.