
London planetree
Platanus acerifolia
Very low today, mostly tree pollen.
Last updated August 15, 2026
Pollen levels in Richmond Hill are quiet today, with both tree and weed sources registering very low. Sensitive individuals are unlikely to notice much discomfort, and for most people this is a low-impact day to be outdoors. Looking ahead, conditions are expected to remain calm through the rest of the week, with tree pollen staying minimal and weed pollen holding steady aside from a slight uptick midweek before settling back down. This tracks with the season—by mid-August, the trees common to the area, including plane, maple, pyrus, linden, and oak, have largely finished releasing pollen, and attention is starting to shift toward ragweed and other late-summer weeds as the fall allergy season approaches.
Every dot is a tree near Richmond Hill, 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 Richmond Hill. Each bar is that genus's share of the tree pollen.
1,082 pollen-relevant trees nearby drive today's tree-pollen reading.
Get to know the tree types growing around Richmond Hill: what each looks like, how allergenic it is, and when it blooms.

London planetree
Platanus acerifolia

Callery pear
Pyrus calleryana

Cherry
Prunus

Honeylocust
Gleditsia triacanthos

Pin oak
Quercus palustris

Norway maple
Acer platanoides

Littleleaf linden
Tilia cordata

Red maple
Acer rubrum

Chokecherry
Prunus virginiana

Crimson king maple
Acer platanoides

Japanese zelkova
Zelkova serrata

Leaf plum purple
Prunus cerasifera

Sophora
Styphnolobium japonicum

Silver maple
Acer saccharinum

Ginkgo
Ginkgo biloba

American linden
Tilia americana