High
Expect noticeable allergy symptoms
Multiple pollen types are active · Tomorrow → · Updated 15 hours ago
Today in Plano: tree pollen is high, grass pollen is moderate, weed pollen is high. Overall score: 74/100. Allergies are bad right now for many people. Multiple pollen types are active. Tomorrow is expected to be about the same. Updated at 1:00 AM.
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Multiple pollen types are high — symptoms likely
Wear a mask outdoors
Filters pollen particles when outside
Use a HEPA air purifier
Reduces indoor pollen levels
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Pollen levels in Plano are currently elevated. Most allergy sufferers may experience symptoms including sneezing, runny nose, and itchy eyes.
Tree pollen: High. Grass pollen: Moderate. Weed pollen: High.
Tomorrow's pollen forecast for Plano is expected to be about the same, with high pollen conditions.
Multiple pollen types are active in Plano today, so no single supported allergen is clearly highest.
Tree pollen in Plano is high today.
Grass pollen in Plano is moderate today.
Weed pollen in Plano is high today.
Plano, Texas, located in the humid subtropical climate of North Texas, experiences a long and intense allergy season driven by mild winters, hot summers, and abundant native vegetation.
The year often opens with one of the region's most notorious allergens: mountain cedar (Ashe juniper), which peaks from December through February and triggers the infamous "cedar fever." As winter fades, tree pollen surges from February through May, with oak, ash, elm, pecan, mulberry, and cottonwood producing heavy airborne loads—oak being particularly aggressive in April.
Grass pollen takes over from late April through September, dominated by Bermuda, Johnson, Timothy, and Kentucky bluegrass, thriving in the region's warm, humid conditions. Fall brings a sharp rise in weed pollen from August through November, with ragweed as the primary offender, alongside pigweed, lamb's quarters, and careless weed. Overlaps between late-season grasses and early fall weeds often intensify symptoms in September.
Beyond pollen, Plano residents contend with year-round mold spores fueled by humidity and decaying vegetation, along with dust mites, elevated ozone levels in summer, and occasional dust transported by southerly winds.
Overall, Plano's allergy profile is defined by a nearly continuous calendar of exposure, with cedar, oak, Bermuda grass, and ragweed as its defining triggers.
Tomorrow's pollen forecast for Plano is expected to be about the same, with high pollen conditions.