High Pollen in Arvada, CO

About pollen in Arvada

Weed pollen is the main concern in Arvada today, running at a high level that is likely to be noticeable for anyone with sensitivities. Tree pollen is quiet right now, so if you are dealing with itchy eyes, a scratchy throat, or sneezing, weeds are the most likely source. This is a good day to be mindful if you plan to spend extended time outdoors, particularly in the afternoon when pollen tends to circulate more. Looking ahead, weed pollen is expected to stay high over the next couple of days and then climb even further, reaching very high levels through the rest of the forecast window. This lines up with the typical late-summer pattern in the region, as ragweed and other weeds move into their most active stretch. Tree pollen, meanwhile, should remain minimal, since local trees like elm, oak, and catalpa have already finished their main pollen season earlier in the year. For now, weeds are the one to keep in mind as we move deeper into August.

What to do today

• Avoid mowing the lawn and raking leaves.
• When driving the car, close your windows and turn the air conditioning system to recirculation mode.
• Keep your windows closed and turn on your air purifier or air conditioning.
• Consider staying indoors during the peak pollen hours (morning and early afternoon).

Tree map

Every dot is a tree near Arvada, 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 Arvada. Each bar is that genus's share of the tree pollen.

Meet the trees near you

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

Honey locust

Gleditsia triacanthos

Allergenicity 2/4Blooms spring

Siberian elm

Ulmus pumila

Allergenicity 3/4Blooms spring

Silver maple

Acer saccharinum

Allergenicity 3/4Blooms spring

Green ash

Fraxinus pennsylvanica

Allergenicity 4/4Blooms spring

Northern hackberry

Celtis occidentalis

Allergenicity 3/4Blooms spring

Littleleaf linden

Tilia cordata

Allergenicity 2/4Blooms summer

White ash

Fraxinus americana

Allergenicity 4/4Blooms spring

Ponderosa pine

Pinus ponderosa

Allergenicity 1/4Blooms spring

Norway maple

Acer platanoides

Allergenicity 3/4Blooms spring

Austrian pine

Pinus nigra

Allergenicity 1/4Blooms spring

Flowering pear

Pyrus calleryana

Allergenicity 1/4Blooms spring

Bur oak

Quercus macrocarpa

Allergenicity 4/4Blooms spring

American elm

Ulmus americana

Allergenicity 3/4Blooms spring

Plains cottonwood

Populus sargentii

Allergenicity 3/4Blooms spring

Swamp white oak

Quercus bicolor

Allergenicity 4/4Blooms spring

Kentucky coffeetree

Gymnocladus dioicus

Allergenicity 2/4Blooms spring

Common questions

What is the pollen count in Arvada, CO today?

Arvada, CO is at a high 4 out of 5 on the Universal Pollen Index today, driven mainly by weed pollen. Over the next five days it ranges from 4 to 5 of 5.

Is weed pollen high in Arvada, CO right now?

Weed pollen is high today at 4 of 5, and it's past its peak season. Many allergy sufferers will have symptoms.

What plants are causing allergies in Arvada, CO?

The main sources right now are Catalpa, Malus, Elm, Oak, and Pine. Elm (Ulmaceae (the Elm family), Two distinct seasons, late winter to early spring, and late summer to fall (species dependent)) is actively pollinating.