Pollen in St. Louis, MO

About pollen in St. Louis

Pollen levels in St. Louis are quiet today, with tree pollen sitting at essentially none. Anyone who typically reacts to airborne pollen should find the air calm and easy to manage, with little chance of symptoms being triggered by outdoor activity. Looking ahead, conditions are expected to stay low over the next several days, continuing the trend of minimal tree pollen activity. This fits the season well, since mid-November falls after the fall ragweed and grass seasons have wound down, and well before local trees such as elm, maple, pine, honeylocust, and hornbeam (Carpinus) begin releasing pollen again in early spring. For now, allergy sufferers in the area can expect a restful stretch with little pollen to contend with.

What to do today

• Pollen is minimal today, so it's a great time to be outside.
• No special pollen precautions are needed right now.

Tree map

Every dot is a tree near St. Louis, colored by how allergenic it is. Click one for its details, and zoom in for a closer look.

Top tree-pollen sources

The local tree genera behind today's pollen near St. Louis. Each bar is that genus's share of the tree pollen.

Meet the trees near you

Get to know the tree types growing around St. Louis: what each looks like, how allergenic it is, and when it blooms.

Red maple

Acer rubrum

Allergenicity 3/4Blooms spring

Green ash

Fraxinus pennsylvanica

Allergenicity 4/4Blooms spring

Callery pear

Pyrus calleryana

Allergenicity 1/4Blooms spring

Pin oak

Quercus palustris

Allergenicity 4/4Blooms spring

Littleleaf linden

Tilia cordata

Allergenicity 2/4Blooms summer

Sugar maple

Acer saccharum

Allergenicity 3/4Blooms spring

Freeman maple

Acer freemanii

Allergenicity 3/4Blooms spring

Silver maple

Acer saccharinum

Allergenicity 3/4Blooms spring

White ash

Fraxinus americana

Allergenicity 4/4Blooms spring

American sycamore

Platanus occidentalis

Allergenicity 4/4Blooms spring

Thornless honeylocust

Gleditsia triacanthos

Allergenicity 2/4Blooms spring

London planetree

Platanus acerifolia

Allergenicity 4/4Blooms spring

Cherry/plum

Prunus

Allergenicity 1/4Blooms spring

Sweetgum

Liquidambar styraciflua

Allergenicity 2/4Blooms spring

Hybrid elm

Ulmus

Allergenicity 3/4Blooms spring

Ginkgo

Ginkgo biloba

Allergenicity 1/4Blooms spring

Common questions

What is the pollen count in St. Louis, MO today?

St. Louis, MO has no notable tree, grass, or weed pollen today.

What plants are causing allergies in St. Louis, MO?

The main sources right now are Carpinus, Honeylocust, Elm, Maple, and Pine.