Low Pollen in Philadelphia, PA

Low today, mostly weed pollen.

Last updated August 15, 2026

Today's index2out of 5Low
TreeVery Lowoff-season
WeedLowoff-season

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.

Forecast

Sun
1
Mon
1
Tue
2
Wed
1

About pollen in Philadelphia

Pollen levels in Philadelphia remain generally low today. Weed pollen is the more active category, though it's still sitting at a mild level that most people won't notice much. Tree pollen is essentially quiet at this point in the season, so overall conditions are easy to manage for most residents, including those with some sensitivity. Looking ahead, this pattern should hold steady over the next several days, with weed pollen staying in the same low-to-mild range and tree pollen continuing to sit on the sidelines. This lines up with what's typical for mid-August: the region's oaks, maples, and birches finished their pollen release back in spring, and grass season has largely wound down as well. What we're beginning to watch instead is the early edge of ragweed season, which tends to build through late summer and into fall, so it's worth keeping an eye on as the weeks progress.

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. Over the next five days it ranges from 1 to 2 of 5.
Is weed pollen high in Philadelphia, PA right now?
Weed pollen is low today at 2 of 5, and it's past its peak season. Most people won't have symptoms.