Very Low Pollen in Pittsburgh, PA

Very low today, mostly tree pollen.

Last updated July 28, 2026

Today's index1out of 5Very Low
TreeVery Low

Driving it today

MapleAcerHoneylocustGleditsiaZelkovaZelkovaElmUlmusGinkgoGinkgo

Forecast

Wed
N/A
Thu
N/A
Fri
1
Sat
1

About pollen in Pittsburgh

Pollen levels in Pittsburgh are quiet today. Tree pollen, the only type being tracked right now, is registering at a very low level, meaning most people should be able to go about their outdoor plans without much irritation. Even those who tend to react strongly to tree pollen are unlikely to notice much of anything in the air today. Looking ahead, this calm stretch is expected to hold through the next several days, with tree pollen staying low throughout. This lines up with the season, since the trees that dominate Pittsburgh's allergy picture, including maple, elm, and ginkgo, along with honeylocust and zelkova, release most of their pollen in spring rather than midsummer. With that peak well behind us, the current lull in tree pollen is right on schedule for late July.

What to do today

  • Pollen is low today, so it's a good day for outdoor activities.
  • If you're sensitive, rinsing off after time outside still helps.

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.

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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.

593 pollen-relevant trees nearby drive today's tree-pollen reading.

  • MapleAcer36%
  • HoneylocustGleditsia33%
  • Zelkova18%
  • ElmUlmus11%
  • Ginkgo1%
  • BuckeyeAesculus1%

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

Norway maple

Acer platanoides

Allergenicity 3/4Blooms spring
Red maple

Red maple

Acer rubrum

Allergenicity 3/4Blooms spring
Callery pear

Callery pear

Pyrus calleryana

Allergenicity 1/4Blooms spring
Northern red oak

Northern red oak

Quercus rubra

Allergenicity 4/4Blooms spring
Thornless honeylocust

Thornless honeylocust

Gleditsia triacanthos

Allergenicity 2/4Blooms spring
Ginkgo

Ginkgo

Ginkgo biloba

Allergenicity 1/4Blooms spring
Littleleaf linden

Littleleaf linden

Tilia cordata

Allergenicity 2/4Blooms summer
American sweetgum

American sweetgum

Liquidambar styraciflua

Allergenicity 2/4Blooms spring
London planetree

London planetree

Platanus acerifolia

Allergenicity 4/4Blooms spring
Pin oak

Pin oak

Quercus palustris

Allergenicity 4/4Blooms spring
Sugar maple

Sugar maple

Acer saccharum

Allergenicity 3/4Blooms spring
Black locust

Black locust

Robinia pseudoacacia

Allergenicity 2/4Blooms spring
Cherry/plum:

Cherry/plum:

Prunus

Allergenicity 1/4Blooms spring
Hedge maple

Hedge maple

Acer campestre

Allergenicity 3/4Blooms spring
Silver maple

Silver maple

Acer saccharinum

Allergenicity 3/4Blooms spring
White mulberry

White mulberry

Morus alba

Allergenicity 5/4Blooms spring

Common questions

What is the pollen count in Pittsburgh, PA today?
Pittsburgh, PA is at a very low 1 out of 5 on the Universal Pollen Index today, driven mainly by tree pollen. The five-day outlook holds steady around 1 of 5.
Is tree pollen high in Pittsburgh, PA right now?
Tree pollen is very low today at 1 of 5. Most people won't notice it.
What plants are causing allergies in Pittsburgh, PA?
The main sources right now are Maple, Honeylocust, Zelkova, Elm, and Ginkgo.