Pollen in Boston, MA

About pollen in Boston

Pollen counts around Boston are quiet today, with tree pollen sitting at essentially nothing in the air. Anyone sensitive to seasonal allergies should find little to react to, making it a comfortable day to spend time outdoors without much concern about pollen triggers. Looking ahead, tree pollen is expected to stay negligible for a day or so before edging up slightly to a low level through the rest of the week. That modest uptick is likely just background pollen from lingering sources like maple, elm, oak, honeylocust, and sophora rather than a true seasonal surge, since tree pollen typically peaks back in spring and has largely wound down by midsummer. For now, conditions remain favorable for those who usually struggle when pollen counts climb.

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 Boston, 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 Boston. Each bar is that genus's share of the tree pollen.

Meet the trees near you

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

Honeylocust

Gleditsia triacanthos

Allergenicity 2/4Blooms spring

Littleleaf linden

Tilia cordata

Allergenicity 2/4Blooms summer

Red maple

Acer rubrum

Allergenicity 3/4Blooms spring

Pin oak

Quercus palustris

Allergenicity 4/4Blooms spring

Norway maple

Acer platanoides

Allergenicity 3/4Blooms spring

Callery pear

Pyrus calleryana

Allergenicity 1/4Blooms spring

Green ash

Fraxinus pennsylvanica

Allergenicity 4/4Blooms spring

Japanese zelkova

Zelkova serrata

Allergenicity 2/4Blooms spring

London planetree

Platanus x acerifolia

Allergenicity 4/4Blooms spring

Ginkgo

Ginkgo biloba

Allergenicity 1/4Blooms spring

Northern Red oak

Quercus rubra

Allergenicity 4/4Blooms spring

Accolade elm

Ulmus carpinifolia

Allergenicity 3/4Blooms spring

Swamp White oak

Quercus bicolor

Allergenicity 4/4Blooms spring

American elm

Ulmus americana

Allergenicity 3/4Blooms spring

Common sweetgum

Liquidambar styraciflua

Allergenicity 2/4Blooms spring

American basswood

Tilia americana

Allergenicity 2/4Blooms summer

Common questions

What is the pollen count in Boston, MA today?

Boston, MA has no notable tree, grass, or weed pollen today.

What plants are causing allergies in Boston, MA?

The main sources right now are Honeylocust, Maple, Elm, Sophora, and Oak.