Stay updated with real-time pollen levels in O'Fallon, Illinois. Use our interactive maps and forecasts to manage allergies and confidently plan outdoor activities.
Live Pollen Level
High
O'Fallon, Illinois
Last updated: ... (Local time)

Disclaimer: The information provided is for informational purposes only and should not be considered medical advice. Always consult a healthcare professional for allergy-related concerns.
Low
Moderate
High
Very high
368 ppm
0
95
208
704+
0 ppm
0
30
61
342+
0 ppm
0
21
78
267+
AQI
27
Good
O'Fallon, Illinois
O'Fallon, Illinois
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19ppm
Ash
47ppm
Birch
34ppm
Elm
10ppm
Maple
47ppm
Mulberry
144ppm
Oak
12ppm
Pine
0ppm
Ragweed
Low
35ppm
Tree
0ppm
Weed
0ppm
Grass
High
245ppm
Tree
0ppm
Weed
0ppm
Grass
Moderate
195ppm
Tree
0ppm
Weed
0ppm
Grass
High
238ppm
Tree
0ppm
Weed
0ppm
Grass
High
233ppm
Tree
0ppm
Weed
0ppm
Grass
High
234ppm
Tree
0ppm
Weed
0ppm
Grass
High

Ambee’s pollen data for Illinois, USA follows National Allergy Bureau (NAB) standards, offering accurate, real-time updates with clear allergy risk levels. Our approach, using machine learning and historical trends, ensures precise, hyper-local pollen forecasts to support allergy management.
Disclaimer: While we strive for accuracy, individual responses to allergens may vary. Always consult a healthcare provider for personal advice.
The pollen data for O'fallon, Illinois is updated every hour.
The pollen risk in O'fallon, Illinois today is considered high.
Yesterday, the pollen risk in O'fallon, Illinois was very high.
The ragweed count in O'fallon, Illinois today is 0 ppm.
The oak pollen count in O'fallon, Illinois today is 84 ppm.
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