
Sugar maple
Acer saccharum
No notable pollen right now.
Last updated July 28, 2026
Pollen counts around Louisville are quiet today, with tree pollen sitting at essentially none. Anyone who typically reacts to trees like elm, dogwood, or fringetree should find little to worry about right now, and overall this is a low-irritation day for outdoor activity. Looking ahead, the tree pollen forecast stays flat over the next several days, so no meaningful change is expected in the near term. This tracks with the season, since the spring flush from trees such as elm, silverbell, and smoke tree has long passed, and mid to late summer here tends to be a lull before ragweed and other late-season plants make their presence known in the coming weeks.
Every dot is a tree near Louisville, 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 Louisville. Each bar is that genus's share of the tree pollen.
92 pollen-relevant trees nearby drive today's tree-pollen reading.
Get to know the tree types growing around Louisville: what each looks like, how allergenic it is, and when it blooms.

Sugar maple
Acer saccharum

American sycamore
Platanus occidentalis

Red maple
Acer rubrum

Pin oak
Quercus palustris

White ash
Fraxinus americana

Sweetgum
Liquidambar styraciflua

Green ash
Fraxinus pennsylvanica

Tulip poplar
Liriodendron tulipifera

Eastern red cedar
Juniperus virginiana

Swamp white oak
Quercus bicolor

Northern catalpa
Catalpa speciosa

Northern red oak
Quercus rubra

Scarlet red oak
Quercus coccinea

American elm
Ulmus americana

Black cherry
Prunus serotina

Silver maple
Acer saccharinum