Moderate Pollen in Seattle, WA

Moderate today, mostly weed pollen.

Last updated August 15, 2026

Today's index3out of 5Moderate
TreeNonein season
WeedModerateoff-season

Driving it today

LindenTiliaMapleAcerOakQuercusCarpinusCarpinusLiquidambarLiquidambar

Forecast

Sun
3
Mon
3
Tue
3
Wed
3

About pollen in Seattle

Weed pollen is the main story in Seattle today, sitting at a moderate level that sensitive individuals will likely notice. Tree pollen is quiet, so if you're prone to reactions this time of year, it's the weeds worth paying attention to rather than anything coming from the region's trees. Looking ahead, weed pollen is expected to hold steady at a moderate level over the next several days, so those with sensitivities should expect similar conditions through the week. Tree pollen should remain absent for now, which lines up with the seasonal pattern — trees like linden, maple, oak, hornbeam, and sweetgum typically release their pollen in spring, well before late summer. This time of year in the Pacific Northwest, weeds tend to be the more persistent source of irritation as the season shifts toward 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 Seattle, colored by how allergenic it is. Click one for its details, and zoom in for a closer look.

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Top tree-pollen sources

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

1,235 pollen-relevant trees nearby drive today's tree-pollen reading.

  • LindenTilia100%

Meet the trees near you

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

Norwegian sunset maple

Norwegian sunset maple

Acer truncatum

Allergenicity 3/4Blooms spring
Thundercloud purpleleaf plum

Thundercloud purpleleaf plum

Prunus cerasifera

Allergenicity 1/4Blooms spring
Norway maple

Norway maple

Acer platanoides

Allergenicity 3/4Blooms spring
Paperbark maple

Paperbark maple

Acer griseum

Allergenicity 3/4Blooms spring
Aristocrat pear

Aristocrat pear

Pyrus calleryana

Allergenicity 1/4Blooms spring
Blireiana purpleleaf plum

Blireiana purpleleaf plum

Prunus blireiana

Allergenicity 1/4Blooms spring
Pacific sunset maple

Pacific sunset maple

Acer truncatum

Allergenicity 3/4Blooms spring
Cherry/plum/laurel

Cherry/plum/laurel

Prunus

Allergenicity 1/4Blooms spring
Red maple

Red maple

Acer rubrum

Allergenicity 3/4Blooms spring
Frontier elm

Frontier elm

Ulmus

Allergenicity 3/4Blooms spring
Kwanzan flowering cherry

Kwanzan flowering cherry

Prunus L.

Allergenicity 1/4Blooms spring
Akebono cherry

Akebono cherry

Prunus yedoensis

Allergenicity 1/4Blooms spring
Callery pear

Callery pear

Pyrus calleryana

Allergenicity 1/4Blooms spring
October glory red maple

October glory red maple

Acer rubrum

Allergenicity 3/4Blooms spring
Spring snow cherry

Spring snow cherry

Prunus

Allergenicity 1/4Blooms spring
Chanticleer pear

Chanticleer pear

Pyrus calleryana

Allergenicity 1/4Blooms spring

Common questions

What is the pollen count in Seattle, WA today?
Seattle, WA is at a moderate 3 out of 5 on the Universal Pollen Index today, driven mainly by weed pollen. The five-day outlook holds steady around 3 of 5.
Is weed pollen high in Seattle, WA right now?
Weed 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 Seattle, WA?
The main sources right now are Linden, Maple, Oak, Carpinus, and Liquidambar. Elm (Ulmaceae (the Elm family), Two distinct seasons, late winter to early spring, and late summer to fall (species dependent)) is actively pollinating.