Moderate
Moderate pollen — allergy symptoms are likely
Weed pollen is the main trigger · Tomorrow → · Updated 4 hours ago
Today in Raleigh: weed pollen is high, tree pollen is low, grass pollen is moderate. Overall score: 54/100. Allergies may be noticeable right now. Tomorrow is expected to be about the same. Updated at 2:00 AM.
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Weed pollen is present — mild symptoms possible
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Pollen levels in Raleigh are moderate. People with heightened sensitivity to pollen may notice symptoms.
Tree pollen: Low. Grass pollen: Moderate. Weed pollen: High.
Tomorrow's pollen forecast for Raleigh is expected to be about the same, with moderate pollen conditions.
Weed pollen is the highest supported pollen type in Raleigh today. Weed pollen is high.
Tree pollen in Raleigh is low today.
Grass pollen in Raleigh is moderate today.
Weed pollen in Raleigh is high today.
Raleigh, North Carolina sits in the humid subtropical climate of the Piedmont, a region consistently ranked among the most challenging allergy cities in the United States due to its long growing season, abundant forestation, and warm, moist air that sustains pollen and mold year-round.
Tree pollen launches the allergy calendar aggressively from late February through May, driven by oak, pine, cedar, birch, maple, hickory, and sweetgum, with the notorious yellow-green pine pollen coating surfaces at its April peak.
As trees taper off, grass pollen takes over from May through July, dominated by Bermuda, Timothy, orchard, and fescue grasses common to local lawns and pastures.
By mid-August, weed pollen ushers in fall allergy season through October, led by ragweed—a major regional trigger—along with pigweed, lamb's quarters, and plantain. The overlap between late-season grasses and early ragweed in August can significantly intensify symptoms.
Beyond pollen, Raleigh's high humidity fuels persistent outdoor and indoor mold spores, while dust mites thrive year-round and seasonal ozone and vehicle-related pollution can worsen reactions.
Overall, Raleigh's allergy profile is defined by an exceptionally long, pollen-heavy season bookended by intense spring tree loads and a strong fall ragweed surge, amplified by humidity-driven mold.
Tomorrow's pollen forecast for Raleigh is expected to be about the same, with moderate pollen conditions.