Very Low Pollen in Houston, TX

About pollen in Houston

Tree pollen is the main player in Houston today, sitting at a moderate level (3) and pushing the overall index to the same reading. Grass pollen remains very low at 1, and there's no current data for weeds. Local trees like Oak, Plane, Elm, Celtis, and Taxodium are the likeliest contributors when tree counts run elevated. The grass forecast holds steady at 1 across the next five days, suggesting no near-term jump from that source, though no forecast is available for trees or weeds to extend the outlook. By late June, the spring tree-pollen peak is typically winding down while grass tends to be more active in late spring and early summer; ragweed season is still ahead, generally arriving later in the summer and into fall.

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 Houston, 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 Houston. Each bar is that genus's share of the tree pollen.

Meet the trees near you

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

Live oak

Quercus virginiana

Allergenicity 4/4Blooms spring

Common hackberry

Celtis occidentalis

Allergenicity 3/4Blooms spring

Loblolly pine

Pinus taeda

Allergenicity 1/4Blooms spring

Water oak

Quercus nigra

Allergenicity 4/4Blooms spring

Arizona ash

Fraxinus velutina

Allergenicity 4/4Blooms spring

Cedar elm

Ulmus crassifolia

Allergenicity 3/4Blooms spring

Pecan

Carya illinoinensis

Allergenicity 3/4Blooms spring

American elm

Ulmus americana

Allergenicity 3/4Blooms spring

Mulberry

Morus

Allergenicity 5/4Blooms spring

Juniper

Juniperus chinensis

Allergenicity 5/4Blooms winter,spring

Willow oak

Quercus phellos

Allergenicity 4/4Blooms spring

Chinese elm

Ulmus parvifolia

Allergenicity 3/4Blooms spring

American sycamore

Platanus occidentalis

Allergenicity 4/4Blooms spring

Green ash

Fraxinus pennsylvanica

Allergenicity 4/4Blooms spring

Catalpa

Catalpa

Allergenicity 2/4Blooms spring

Shumard oak

Quercus shumardii

Allergenicity 4/4Blooms spring

Common questions

What is the pollen count in Houston, TX today?

Houston, TX 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 Houston, TX 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 Houston, TX?

The main sources right now are Ligustrum, Magnolia, Lagerstroemia, Oak, and Washingtonia.