Pollen in Gresham, OR

About pollen in Gresham

Pollen activity in Gresham is quiet today, with tree pollen at essentially nonexistent levels. For anyone sensitive to Douglas fir, cherry and other Prunus species, oak, styrax, or beech, this should be a comfortable day with little to no irritation expected from trees. Looking ahead, conditions are expected to remain calm, with tree pollen staying negligible over the next several days. This fits the seasonal pattern, as most local trees released their pollen back in spring and are now dormant for the fall. With grass and ragweed season also winding down this time of year, overall pollen exposure in the area should stay low for the near future.

What to do today

• Pollen is minimal today, so it's a great time to be outside.
• No special pollen precautions are needed right now.

Tree map

Every dot is a tree near Gresham, colored by how allergenic it is. Click one for its details, and zoom in for a closer look.

Top tree-pollen sources

The local tree genera behind today's pollen near Gresham. Each bar is that genus's share of the tree pollen.

Meet the trees near you

Get to know the tree types growing around Gresham: what each looks like, how allergenic it is, and when it blooms.

Red maple

Acer rubrum

Allergenicity 3/4Blooms spring

Norway maple

Acer platanoides

Allergenicity 3/4Blooms spring

Pear

Pyrus

Allergenicity 1/4Blooms spring

Plum

Prunus

Allergenicity 1/4Blooms spring

Cherry

Prunus

Allergenicity 1/4Blooms spring

Deciduous oak

Quercus

Allergenicity 4/4Blooms spring

Ash

Fraxinus

Allergenicity 4/4Blooms spring

Birch

Betula

Allergenicity 5/4Blooms spring

Japanese maple

Acer palmatum

Allergenicity 3/4Blooms spring

Pine

Pinus

Allergenicity 1/4Blooms spring

Sweetgum

Liquidambar

Allergenicity 2/4Blooms spring

Other maple

Acer

Allergenicity 3/4Blooms spring

Zelkova

Zelkova serrata

Allergenicity 2/4Blooms spring

Linden

Tilia

Allergenicity 2/4Blooms summer

Bigleaf maple

Acer macrophyllum

Allergenicity 3/4Blooms spring

Paperbark maple

Acer griseum

Allergenicity 3/4Blooms spring

Common questions

What is the pollen count in Gresham, OR today?

Gresham, OR has no notable tree, grass, or weed pollen today.

What plants are causing allergies in Gresham, OR?

The main sources right now are Pseudotsuga, Prunus, Oak, Styrax, and Fagus.