
Norway maple
Acer platanoides
Very low today, mostly tree pollen.
Last updated July 20, 2026
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.
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