
Honeylocust
Gleditsia triacanthos
Moderate today, mostly weed pollen.
Last updated September 30, 2026
Weed pollen is the main story in Washington Heights today, running at a moderate level that sensitive individuals will likely notice. Tree pollen is quiet, so any seasonal discomfort right now is almost certainly coming from ragweed and related late-season weeds rather than from trees. Looking ahead, weed pollen is expected to hold in the moderate range over the next several days, dipping slightly at times but staying active overall. This tracks with the calendar: late September is typical ragweed season, and levels like this are common until the first hard frost knocks it back. Tree pollen should remain a non-issue for now, since local species like oak, elm, linden, honeylocust, and Gymnocladus are dormant this time of year and won't become relevant again until spring.
Every dot is a tree near Washington Heights, 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 Washington Heights. Each bar is that genus's share of the tree pollen.
867 pollen-relevant trees nearby drive today's tree-pollen reading.
Get to know the tree types growing around Washington Heights: what each looks like, how allergenic it is, and when it blooms.

Honeylocust
Gleditsia triacanthos

London planetree
Platanus acerifolia

Callery pear
Pyrus calleryana

Ginkgo
Ginkgo biloba

Pin oak
Quercus palustris

Littleleaf linden
Tilia cordata

Norway maple
Acer platanoides

Japanese zelkova
Zelkova serrata

Green ash
Fraxinus pennsylvanica

Sophora
Styphnolobium japonicum

Cherry
Prunus

American linden
Tilia americana

Silver linden
Tilia tomentosa

Silver maple
Acer saccharinum

Red maple
Acer rubrum

Sawtooth oak
Quercus acutissima