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Gathering pollen, air quality, and weather data for you.
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Pollen Level
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Air Quality
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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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Indianapolis's allergy season is compressed but intense, running from April through October. The flat, agricultural landscape around Indianapolis, IN produces significant grass and ragweed pollen during peak months.
Right now: May is the overlap month in Indianapolis — 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 Indianapolis 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.
CAUTION
Limit exposure
Grass pollen is high and 18 mph wind is stirring it up. If you need to be outside, aim for the safest window later in the day.
Lower-risk hours: 11:00-13:00
Pollen Level
High
250 grains/m³ · Grass
Air Quality
AQI 47
Good
Weather
64°F
Cloudy · 53% humidity · 18 mph wind
~250 grains/m³
~50 grains/m³
~5 grains/m³