
Honeylocust
Gleditsia triacanthos
Moderate today, mostly weed pollen.
Last updated August 15, 2026
Weed pollen is the main driver of today's moderate conditions in Rochester, with tree pollen contributing only lightly in the background. For those sensitive to weeds, this is likely to be noticeable, while tree-related symptoms should stay mild given the low levels currently in the air. Looking ahead, weed pollen is expected to hold steady over the next few days before ticking up slightly toward the end of the stretch, so anyone sensitive should be prepared for a somewhat more irritating spell later in the forecast window. Tree pollen should remain low and fairly stable throughout, which fits the season — local trees like ash, oak, maple, celtis, and honeylocust are well past their spring peak. This time of year, the greater concern is late-summer weed pollen, including ragweed, which typically becomes more prominent into early fall.
Every dot is a tree near Rochester, 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 Rochester. Each bar is that genus's share of the tree pollen.
633 pollen-relevant trees nearby drive today's tree-pollen reading.
Get to know the tree types growing around Rochester: what each looks like, how allergenic it is, and when it blooms.

Honeylocust
Gleditsia triacanthos

Northern red oak
Quercus rubra

Little leaf linden
Tilia cordata

Sugar maple
Acer saccharum

Black walnut
Juglans nigra

White oak
Quercus alba

London planetree
Platanus acerifolia

Red maple
Acer rubrum

Austrian pine
Pinus nigra

Green ash
Fraxinus pennsylvanica

Sweetgum
Liquidambar styraciflua

Swamp white oak
Quercus bicolor

Pin oak
Quercus palustris

Silver maple
Acer saccharinum

Tuliptree
Liriodendron tulipifera

Blacklocust
Robinia pseudoacacia