Low Pollen in Pittsburgh, PA

About pollen in Pittsburgh

Weed pollen is the main contributor to today's mild pollen picture in Pittsburgh, though it remains at a low level overall. Tree pollen is nearly absent, so anyone sensitive to it should have an easy day. For those affected by weeds, particularly ragweed at this point in the season, there may be some mild irritation, but conditions are generally calm. Looking ahead, weed pollen is expected to tick up slightly over the next couple of days before easing again by the end of the week, staying in the low-to-moderate range throughout. Tree pollen should remain very quiet, which is typical for this time of year since species like maple, elm, and ginkgo have long finished their spring release. As autumn continues, ragweed and other late-season weeds will likely remain the primary source of any lingering allergy symptoms in the area.

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.

Tree map

Every dot is a tree near Pittsburgh, colored by how allergenic it is. Click one for its details, and zoom in for a closer look.

Top tree-pollen sources

The local tree genera behind today's pollen near Pittsburgh. Each bar is that genus's share of the tree pollen.

Meet the trees near you

Get to know the tree types growing around Pittsburgh: what each looks like, how allergenic it is, and when it blooms.

Norway maple

Acer platanoides

Allergenicity 3/4Blooms spring

Red maple

Acer rubrum

Allergenicity 3/4Blooms spring

Callery pear

Pyrus calleryana

Allergenicity 1/4Blooms spring

Northern red oak

Quercus rubra

Allergenicity 4/4Blooms spring

Thornless honeylocust

Gleditsia triacanthos

Allergenicity 2/4Blooms spring

Ginkgo

Ginkgo biloba

Allergenicity 1/4Blooms spring

Littleleaf linden

Tilia cordata

Allergenicity 2/4Blooms summer

American sweetgum

Liquidambar styraciflua

Allergenicity 2/4Blooms spring

London planetree

Platanus acerifolia

Allergenicity 4/4Blooms spring

Pin oak

Quercus palustris

Allergenicity 4/4Blooms spring

Sugar maple

Acer saccharum

Allergenicity 3/4Blooms spring

Black locust

Robinia pseudoacacia

Allergenicity 2/4Blooms spring

Cherry/plum:

Prunus

Allergenicity 1/4Blooms spring

Hedge maple

Acer campestre

Allergenicity 3/4Blooms spring

Silver maple

Acer saccharinum

Allergenicity 3/4Blooms spring

White mulberry

Morus alba

Allergenicity 5/4Blooms spring

Common questions

What is the pollen count in Pittsburgh, PA today?

Pittsburgh, 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 3 of 5.

Is weed pollen high in Pittsburgh, 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.

What plants are causing allergies in Pittsburgh, PA?

The main sources right now are Maple, Honeylocust, Zelkova, Elm, and Ginkgo.