
Pin oak
Quercus palustris
Low today, mostly tree pollen.
Last updated July 10, 2026
Pollen levels across Harlem are running low today, with tree pollen slightly more present than grass, though neither should cause much trouble for most people. Sensitive individuals might notice a mild effect from tree sources like oak, maple, or plane, but overall it is a fairly easy day for anyone managing allergies. Looking ahead, grass pollen is expected to tick up gradually over the next several days, moving from very low into the low-to-moderate range by midweek. Tree pollen is likely to hold steady at its current modest level. This pattern fits the season well — most local trees, including honeylocust and zelkova, have largely finished their heavier spring release, while grasses are now entering their more active summer stretch. Ragweed season remains further off, so for now, conditions should stay generally mild.
Every dot is a tree near Harlem, 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 Harlem. Each bar is that genus's share of the tree pollen.
1,284 pollen-relevant trees nearby drive today's tree-pollen reading.
Get to know the tree types growing around Harlem: what each looks like, how allergenic it is, and when it blooms.

Pin oak
Quercus palustris

Honeylocust
Gleditsia triacanthos

London planetree
Platanus acerifolia

Callery pear
Pyrus calleryana

Japanese zelkova
Zelkova serrata

Sophora
Styphnolobium japonicum

Maple
Acer

White oak
Quercus alba

Littleleaf linden
Tilia cordata

Austrian pine
Pinus nigra

Black oak
Quercus velutina

Ginkgo
Ginkgo biloba

Northern red oak
Quercus rubra

Green ash
Fraxinus pennsylvanica

Cherry
Prunus

Swamp white oak
Quercus bicolor