MO · Allergy Season Guide
Saint Louis Allergy Season Guide
Saint Louis, MO allergy season guide with local pollen calendar, mold patterns, and PollyMap collection status.
PollyMap is actively looking for a qualified local partner in Saint Louis.
We're recruiting a qualified local allergy clinic, naturopathic clinic, university, environmental health professional, or other qualified organization to become the official pollen collection partner for Saint Louis.
Become the Official PollyMap Partner for Saint LouisSummary
PollyMap does not yet have weekly collected pollen data for Saint Louis. This guide is based on regional climate patterns and historical allergen data while we recruit a local collection partner. Tree pollen peaks in spring, grass pollen in late spring and early summer, and weed pollen in late summer and fall.
Local allergy guide for Saint Louis
Local weather — temperature, rainfall, wind, and humidity — drives day-to-day pollen levels. Dry, windy days following warm weather typically produce the highest counts, while heavy rain temporarily clears the air.
Saint Louis monthly allergy calendar
Typical month-by-month intensity for the four major airborne allergen categories in Saint Louis.
Current PollyMap data for Saint Louis
Official PollyMap Partner in Saint Louis
Frequently asked questions about allergies in Saint Louis
The PollyKit — $39.99
Test the air at your exact address.
Test the air at your exact address — not a regional forecast, your actual air. Tests for pollen, mold spores, dust mites, and other airborne particles. Ships nationwide. Results in 3–5 days.
- 1
Hang
Hang the PollyKit indoors or outdoors at your home, office, or classroom for 24–48 hours.
- 2
Return
Mail it back in the included prepaid envelope.
- 3
Results
Receive your personal lab report showing what's actually in your air.
Related guides
State Guide
Missouri Allergy Season Guide
Nearby city
Kansas City Allergy Season Guide
Nearby city
St. Louis Allergy Season Guide
Nearby city
Springfield Allergy Season Guide
Nearby city
Columbia Allergy Season Guide
Nearby city
Independence Allergy Season Guide
Library
Pollen species library
Library
Mold species library
Reports
Latest PollyMap reports
Partners
Become a partner
Get local pollen alerts for Saint Louis.
Subscribe and we'll email you when new local reports are published.
Subscribe to alerts