Very Low Pollen in St. Louis, MO

About pollen in St. Louis

Pollen levels around St. Louis remain quiet today. Tree pollen is absent entirely, while grass pollen is present but only at a very low level. For most people, this means little to no irritation, and even those with sensitivities should notice minimal effects from grass pollen right now. Looking ahead, conditions are expected to hold steady over the next couple of days, with grass staying at a similarly low level and tree pollen continuing to sit at none. This lull fits the season: trees such as carpinus, honeylocust, elm, maple, and pine have already finished their spring pollen release, and grass activity is winding down as summer settles in. With ragweed season still weeks away, this is a relatively calm stretch for allergy sufferers in the area.

What to do today

• Pollen levels are very low right now. It's a great day to enjoy the outdoors!

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 is at a very low 1 out of 5 on the Universal Pollen Index today, driven mainly by grass pollen. The five-day outlook holds steady around 1 of 5.

Is grass pollen high in St. Louis, MO right now?

Grass pollen is very low today at 1 of 5, and it's past its peak season. Most people won't notice it.

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

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