Very Low Pollen in Pittsburgh, PA

Very low today, mostly tree pollen.

Last updated July 20, 2026

Today's index1out of 5Very Low
TreeVery Low

Driving it today

MapleAcerHoneylocustGleditsiaZelkovaZelkovaElmUlmusGinkgoGinkgo

Forecast

Tue
N/A
Wed
N/A
Thu
N/A
Fri
N/A

About pollen in Pittsburgh

Pollen levels around Pittsburgh are quiet today. Both tree and grass pollen are running very low, so most people should be able to spend time outdoors without much irritation. Even those with more sensitive allergies are unlikely to notice much of an effect under these conditions. Looking ahead, the outlook stays calm, with tree and grass pollen expected to hold at these low levels over the next few days. This lull fits the season well: the heavier tree pollen from species like maple, elm, ginkgo, honeylocust, and zelkova is well behind us, and grass pollen has also eased off after its late-spring peak. With ragweed season still weeks away, this is shaping up to be a comfortable stretch for allergy sufferers in the area.

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.