Low Pollen in Philadelphia, PA

About pollen in Philadelphia

Weed pollen is the main contributor to the pollen picture in Philadelphia today, though it remains at a low level overall. Grass pollen is barely registering and shouldn't cause much concern. For most people, today should be a comfortable day outdoors, with only those especially sensitive to ragweed and related weeds likely to notice any mild effects. Looking ahead, weed pollen is expected to hold steady at this low level through the next several days, while grass pollen stays quiet in the background. This lines up with the seasonal pattern for late September, when ragweed and other fall weeds are typically the dominant source of pollen as grasses wind down and trees like oak, maple, and birch remain dormant until spring. Overall, conditions should stay mild and manageable through the week.

What to do today

• It's a good day for outdoor activities since pollen levels are low.
• Do you know which plants cause your pollen allergy? Check out the pollen data to be prepared.

Common questions

What is the pollen count in Philadelphia, PA today?

Philadelphia, PA is at a low 2 out of 5 on the Universal Pollen Index today, driven mainly by weed pollen. The five-day outlook holds steady around 2 of 5.

Is weed pollen high in Philadelphia, PA right now?

Weed pollen is low today at 2 of 5, and it's in season now. Most people won't have symptoms.

What plants are causing allergies in Philadelphia, PA?

The main sources right now are Ragweed. Ragweed (Asteraceae (the daisy family), Late summer, fall) is actively pollinating.