Moderate Pollen in Denver, CO

About pollen in Denver

Grass pollen is the main driver in Denver today, sitting at a moderate level (3) and pushing the overall index to moderate as well. Tree pollen has dropped off to very low (1), with the usual local contributors like Linden, Malus, Crataegus, Plane, and Prunus now well past their spring peak. The five-day forecast holds steady, with grass staying at moderate and tree pollen remaining very low through the period. That pattern fits the season, as late spring and early summer typically bring grass to the forefront once the trees have finished. No weed data is available right now, though ragweed generally doesn't become a factor until later in the summer and into fall.

What to do today

• It's important to shower and wash your hair after spending a lot of time outdoors.
• When spending time outside, use sunglasses and a cap to keep pollen out of your face and eyes.
• Wash clothes worn outdoors to remove any remnants of pollen grains.
• If possible, wear glasses instead of contact lenses.
• Did you hang any laundry outside? Now is a good time to hang clothes indoors or use a dryer if possible.

Tree map

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

Meet the trees near you

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

Plains cottonwood

Populus sargentii

Allergenicity 3/4Blooms spring

Green ash

Fraxinus pennsylvanica

Allergenicity 4/4Blooms spring

Siberian elm

Ulmus pumila

Allergenicity 3/4Blooms spring

Honey locust

Gleditsia triacanthos

Allergenicity 2/4Blooms spring

Austrian pine

Pinus nigra

Allergenicity 1/4Blooms spring

Northern hackberry

Celtis occidentalis

Allergenicity 3/4Blooms spring

Boxelder

Acer negundo

Allergenicity 3/4Blooms spring

Crack willow

Salix fragilis

Allergenicity 3/4Blooms spring

White ash

Fraxinus americana

Allergenicity 4/4Blooms spring

Scotch pine

Pinus sylvestris

Allergenicity 1/4Blooms spring

Quaking aspen

Populus tremuloides

Allergenicity 3/4Blooms spring

Rocky mountain juniper

Juniperus scopulorum

Allergenicity 5/4Blooms winter,spring

Flowering pear

Pyrus calleryana

Allergenicity 1/4Blooms spring

Pinyon pine

Pinus edulis

Allergenicity 1/4Blooms spring

Silver maple

Acer saccharinum

Allergenicity 3/4Blooms spring

Peachleaf willow

Salix amygdaloides

Allergenicity 3/4Blooms spring

Common questions

What is the pollen count in Denver, CO today?

Denver, CO is at a moderate 3 out of 5 on the Universal Pollen Index today, driven mainly by grass pollen. The five-day outlook holds steady around 3 of 5.

Is grass pollen high in Denver, CO right now?

Grass pollen is moderate today at 3 of 5, and it's past its peak season. Sensitive people may notice symptoms.

What plants are causing allergies in Denver, CO?

The main sources right now are Linden, Malus, Crataegus, Plane, and Prunus.