
Honeylocust
Gleditsia triacanthos
Low today, mostly weed pollen.
Last updated September 29, 2026
Weed pollen is the only category with any real presence on the Upper West Side today, and it remains on the low side. Tree pollen is quiet, with nothing being released at the moment, so most sensitive noses should find the air fairly calm today, with only mild effects for those who react strongly to weeds like ragweed. Looking ahead, this pattern is expected to hold steady over the next several days, with weed pollen staying at that same low, low-grade level and tree pollen remaining absent. This fits the season well: local trees such as oak, linden, honeylocust, pyrus, and elm are long past their spring release and won't be active again until next year, while weeds like ragweed are winding down as autumn progresses. Overall, conditions should stay mild and manageable through the week.
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