
Cottonwood
Populus
Low today, mostly grass pollen.
Last updated July 9, 2026
Grass is the only pollen type active in Detroit today, and it remains at a low level, meaning most people should get through the day without much irritation. Tree pollen is quiet for now, so anyone sensitive to grass may notice only mild effects, such as occasional sneezing outdoors, while others should feel little to no impact. Looking ahead, grass pollen is expected to stay in the low range through the next several days, with only slight day-to-day shifts. Tree pollen should remain absent, which is typical for midsummer, since species like oak, maple, linden, and Bradford pear (Pyrus) finish releasing pollen well before this point in the season. Overall, conditions look steady and manageable for the week, with grass as the main contributor to watch for those with sensitivities.
Every dot is a tree near Detroit, 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 Detroit. Each bar is that genus's share of the tree pollen.
145 pollen-relevant trees nearby drive today's tree-pollen reading.
Get to know the tree types growing around Detroit: what each looks like, how allergenic it is, and when it blooms.

Cottonwood
Populus

Willow
Salix

Swamp white oak
Quercus bicolor

Common hackberry
Celtis occidentalis

Higan cherry
Prunus subhirtella

Bloodgood london planetree
Platanus acerifolia

Bur oak
Quercus macrocarpa

Red maple
Acer rubrum

Japanese zelkova
Zelkova serrata

Elm
Ulmus

Tulip tree
Liriodendron tulipifera

Northern red oak
Quercus rubra

Autumn gold ginkgo biloba
Ginkgo biloba

London planetree
Platanus acerifolia

Kentucky coffeetree
Gymnocladus dioicus

River birch
Betula nigra