
Norway maple
Acer platanoides
Very low today, mostly tree pollen.
Last updated July 28, 2026
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.
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.
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.
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

Red maple
Acer rubrum

Callery pear
Pyrus calleryana

Northern red oak
Quercus rubra

Thornless honeylocust
Gleditsia triacanthos

Ginkgo
Ginkgo biloba

Littleleaf linden
Tilia cordata

American sweetgum
Liquidambar styraciflua

London planetree
Platanus acerifolia

Pin oak
Quercus palustris

Sugar maple
Acer saccharum

Black locust
Robinia pseudoacacia

Cherry/plum:
Prunus

Hedge maple
Acer campestre

Silver maple
Acer saccharinum

White mulberry
Morus alba