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Gathering pollen, air quality, and weather data for you.
Gathering pollen, air quality, and weather data for you.
Pollen Level
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Air Quality
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Naperville's allergy season is compressed but intense, running from April through October. The flat, agricultural landscape around Naperville, IL produces significant grass and ragweed pollen during peak months.
Right now: May is the overlap month in Naperville — tree pollen fading as grass pollen surges. Double exposure for allergy sufferers.
Spring
Apr – May
Tree pollen season is short but intense — oak, elm, and ash dominate.
Summer
May – Jul
Grass pollen peaks in June. Agricultural regions see elevated counts.
Fall
Aug – Oct
Ragweed is the dominant allergen. The Midwest is a major ragweed zone.
The flat terrain near Naperville allows pollen to travel long distances on the wind. Cold fronts can temporarily drop counts, but warm spells bring rapid pollen surges. PollenTracker monitors these daily shifts.
Open another nearby forecast without going back to the map.
YES
Tree pollen is moderate with calm conditions. Most people can head out comfortably.
Best hours: 11:00-13:00
Pollen Level
Medium
50 grains/m³ · Tree
Air Quality
AQI 46
Good
Weather
60°F
Cloudy · 64% humidity · 2 mph wind
~50 grains/m³
~50 grains/m³
~5 grains/m³