
Ash
Fraxinus pennsylvanica
Very low today, mostly tree pollen.
Last updated August 15, 2026
Pollen levels around Bloomington are quiet today, with both tree and weed sources holding at very low levels. Most people should be able to go about outdoor plans without much concern, and those with sensitivities are unlikely to notice much of an effect. That calm is expected to be short-lived, however. Tree pollen is set to tick up over the next couple of days before easing again, while weed pollen looks poised to climb more sharply, reaching noticeable levels through midweek before a brief dip and another rise by the end of the forecast window. This pattern fits the season: with August underway, tree pollen from species like oak, ash, and maple is largely winding down, while weeds — ragweed in particular — are moving into their peak stretch through late summer and into fall. Anyone sensitive to ragweed should expect conditions to become more bothersome in the coming days.
Every dot is a tree near Bloomington, 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 Bloomington. Each bar is that genus's share of the tree pollen.
753 pollen-relevant trees nearby drive today's tree-pollen reading.
Get to know the tree types growing around Bloomington: what each looks like, how allergenic it is, and when it blooms.

Ash
Fraxinus pennsylvanica

Elm
Ulmus americana

Maple
Acer platanoides

Linden
Tilia americana

Maple
Acer saccharum

Linden
Tilia cordata

Honeylocust
Gleditsia triacanthos

Hackberry
Celtis occidentalis

Ginkgo
Ginkgo biloba

Maple
Acer rubrum

Maple
Acer saccharinum

Oak
Quercus ellipsoidalis

Oak
Quercus palustris

Elm
Ulmus

Oak
Quercus rubra

Oak
Quercus bicolor