
Norwegian sunset maple
Acer truncatum
Low today, mostly tree pollen.
Last updated July 28, 2026
Tree pollen is the only category active in Seattle today, and it's sitting at a low level. Most people should be able to go about their outdoor plans without much trouble, though those with a strong sensitivity to tree pollen might notice a slight effect. Overall, it's a mild day for allergy sufferers in the area. Looking ahead, conditions are expected to hold steady over the next stretch, with tree pollen staying in that same low range. This is a bit of a lull compared to the spring months, when trees like oak, maple, ash, and plane typically release much heavier amounts of pollen. With summer underway, the trees common to the Seattle area — including liquidambar — are largely past their peak, so anyone sensitive to them should find some relief for now.
Every dot is a tree near Seattle, 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 Seattle. Each bar is that genus's share of the tree pollen.
1,235 pollen-relevant trees nearby drive today's tree-pollen reading.
Get to know the tree types growing around Seattle: what each looks like, how allergenic it is, and when it blooms.

Norwegian sunset maple
Acer truncatum

Thundercloud purpleleaf plum
Prunus cerasifera

Norway maple
Acer platanoides

Paperbark maple
Acer griseum

Aristocrat pear
Pyrus calleryana

Blireiana purpleleaf plum
Prunus blireiana

Pacific sunset maple
Acer truncatum

Cherry/plum/laurel
Prunus

Red maple
Acer rubrum

Frontier elm
Ulmus

Kwanzan flowering cherry
Prunus L.

Akebono cherry
Prunus yedoensis

Callery pear
Pyrus calleryana

October glory red maple
Acer rubrum

Spring snow cherry
Prunus

Chanticleer pear
Pyrus calleryana