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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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Port Jefferson's allergy season typically runs from March through October, with two distinct peaks. Tree pollen surges in spring, then ragweed takes over in late summer. Understanding these patterns helps residents of Port Jefferson, NY plan outdoor activities and manage symptoms.
Right now: July sees grass pollen tapering off in Port Jefferson, but humidity can boost mold spore counts indoors and out.
Spring
Mar – May
Oak, birch, and maple tree pollen peak. Highest risk in April–May.
Summer
May – Jul
Grass pollen dominates. Humid days can elevate mold spore counts.
Fall
Aug – Oct
Ragweed season. Second major peak for allergy sufferers.
Coastal breezes near Port Jefferson can provide temporary relief, but spring nor'easters often redistribute pollen across wide areas. PollenTracker monitors these daily shifts so you know when it's safe to head outside.
Open another nearby forecast without going back to the map.
CAUTION
Grass pollen is moderate, but 21 mph wind may stir it up. Take your usual precautions if you're sensitive.
Pollen: Grass pollen is medium today at 50 grains/m³.
Lower-risk hours: 11:00-13:00
Weather
65°F
Rainy · 97% humidity · 21 mph wind
~5 grains/m³
~5 grains/m³