St. Francisville pollen forecast - today, tomorrow and the week ahead
Today (9 August) pollen in St. Francisville is low; grass and ragweed are low. Tomorrow (10 August 2026) levels are similar. Over the following five days ragweed will decrease; grass will remain stable. 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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Set on bluffs above the Mississippi River in the Felicianas, St. Francisville's landscape is defined by live oak with Spanish moss alongside southern magnolia and loblolly pine, the main contributors to seasonal pollen exposure. Wind patterns across the area help determine how far pollen travels from these source plants. Residents who spend time outdoors around St. Francisville typically notice the shift as each season turns over.
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
9/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
None
0/100
-
Ragweed (Ambrosia):
Low
17/100
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
12/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
None
0/100
-
Ragweed (Ambrosia):
Low
21/100
Air quality in St. Francisville
View air qualityFrequently Asked Questions
Is pollen high in St. Francisville right now?
On 9 August 2026, overall pollen levels in St. Francisville are low. Ambrosia is the main contributor to airborne pollen, while grass remain at lower levels
Will pollen levels change in St. Francisville tomorrow?
On 10 August 2026, pollen conditions in St. Francisville will be similar to today, with ambrosia at low levels, grass at low levels
Is pollen expected to decrease in St. Francisville this week?
According to the five-day outlook, ambrosia pollen levels are expected to gradually decrease, while artemisia pollen will increase, suggesting mixed conditions later in the week.
Which pollen types are currently active in St. Francisville?
On 9 August 2026, Ambrosia is the dominant pollen source in St. Francisville. grass are also present but at lower levels. artemisia and cypress are not currently active.
When is pollen season in St. Francisville?
How often is the St. Francisville pollen forecast updated?
The St. Francisville pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in St. Francisville 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. Francisville 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. Francisville, 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 St. Francisville.
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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.