
Red maple
Acer rubrum
No notable pollen right now.
Last updated July 28, 2026
Pollen levels in Warren are quiet today, with tree pollen essentially absent and nothing of note in the air. It's a good day for anyone who typically deals with seasonal allergy symptoms, as there's little to trigger irritation right now. Looking ahead, tree pollen is expected to tick up only slightly over the next several days, staying at a low level throughout. This tracks with the season, since local trees like maple, oak, linden, crabapple (Malus), and Kentucky coffeetree (Gymnocladus) release most of their pollen in spring and are largely finished for the year. With summer underway, attention will gradually shift toward grasses and, later, ragweed as the more likely sources of irritation.
Every dot is a tree near Warren, 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 Warren. Each bar is that genus's share of the tree pollen.
142 pollen-relevant trees nearby drive today's tree-pollen reading.
Get to know the tree types growing around Warren: what each looks like, how allergenic it is, and when it blooms.

Red maple
Acer rubrum

Common hackberry
Celtis occidentalis

Willow
Salix

Swamp white oak
Quercus bicolor

Elm
Ulmus

London planetree
Platanus acerifolia

Cottonwood
Populus

Kentucky coffeetree
Gymnocladus dioicus

River birch
Betula nigra

Bloodgood london planetree
Platanus acerifolia

Tulip tree
Liriodendron tulipifera

Bur oak
Quercus macrocarpa

Shingle oak
Quercus imbricaria

Japanese zelkova
Zelkova serrata

Northern red oak
Quercus rubra

Littleleaf linden
Tilia cordata