
Honeylocust
Gleditsia triacanthos
Low today, mostly weed pollen.
Last updated October 9, 2026
Weed pollen is the only type active on the Upper West Side today, and it's sitting at a low level — enough that highly sensitive individuals might notice a bit of irritation, but most people should get through the day without much trouble. Tree pollen is absent entirely, which is typical for this point in the season. Looking ahead, weed pollen is expected to ease slightly and hold at a low level through the next several days, so conditions should stay fairly mild overall. Tree pollen will remain quiet, as oak, linden, honeylocust, pyrus, and elm have all finished their active periods for the year and won't return until spring. This pattern fits the season well: autumn tends to be dominated by the tail end of weed pollen, particularly ragweed, before colder weather sets in and pollen activity winds down for the year.
Every dot is a tree near Upper West Side, 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 Upper West Side. Each bar is that genus's share of the tree pollen.
1,029 pollen-relevant trees nearby drive today's tree-pollen reading.
Get to know the tree types growing around Upper West Side: what each looks like, how allergenic it is, and when it blooms.

Honeylocust
Gleditsia triacanthos

Littleleaf linden
Tilia cordata

Callery pear
Pyrus calleryana

Ginkgo
Ginkgo biloba

Japanese zelkova
Zelkova serrata

Norway maple
Acer platanoides

London planetree
Platanus acerifolia

Pin oak
Quercus palustris

Sophora
Styphnolobium japonicum

Green ash
Fraxinus pennsylvanica

American linden
Tilia americana

Northern red oak
Quercus rubra

Red maple
Acer rubrum

Cherry
Prunus

Sweetgum
Liquidambar styraciflua

Chinese elm
Ulmus parvifolia