Low Pollen in Renton, WA

Low today, mostly grass pollen.

Last updated July 9, 2026

Today's index2out of 5Low
TreeNone
GrassLowoff-season

Driving it today

OakQuercusSorbusSorbusSyringaSyringaCarpinusCarpinusAmelanchierAmelanchier

Forecast

Fri
1
Sat
1
Sun
1
Mon
1

About pollen in Renton

Grass pollen is the main source of activity in Renton today, sitting at a low level. Most people should get through the day without much trouble, though those who are particularly sensitive to grass may notice mild symptoms, especially if spending extended time outdoors. Tree pollen is absent right now, so there is no meaningful contribution from that source at the moment. Looking ahead, grass pollen is expected to ease slightly and hold at a low level over the next several days, making for fairly comfortable conditions through the week. Tree pollen should stay quiet as well, which fits the season, since the main flowering period for local trees like oak, mountain ash, lilac, hornbeam, and serviceberry has already passed. With summer underway, grass remains the pollen type most worth keeping an eye on, while ragweed and other late-season weeds typically won't factor in until later in the year.

What to do today

  • It's a good day for outdoor activities since pollen levels are low.
  • Do you know which plants cause your pollen allergy? Check out the pollen data to be prepared.

Tree map

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

237 pollen-relevant trees nearby drive today's tree-pollen reading.

  • OakQuercus55%
  • Sorbus14%
  • Syringa10%
  • Carpinus10%
  • Amelanchier7%
  • AshFraxinus3%

Meet the trees near you

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

Norway maple

Norway maple

Acer platanoides

Allergenicity 3/4Blooms spring
Red maple

Red maple

Acer rubrum

Allergenicity 3/4Blooms spring
Littleleaf linden

Littleleaf linden

Tilia cordata

Allergenicity 2/4Blooms summer
Red oak

Red oak

Quercus rubra

Allergenicity 4/4Blooms spring
Thundercloud purpleleaf plum

Thundercloud purpleleaf plum

Prunus cerasifera

Allergenicity 1/4Blooms spring
Sweetgum

Sweetgum

Liquidambar styraciflua

Allergenicity 2/4Blooms spring
(european) white birch

(european) white birch

Betula pendula

Allergenicity 5/4Blooms spring
Sugar maple

Sugar maple

Acer saccharum

Allergenicity 3/4Blooms spring
Kwanzan flowering cherry

Kwanzan flowering cherry

Prunus L.

Allergenicity 1/4Blooms spring
Sycamore maple

Sycamore maple

Acer pseudoplatanus

Allergenicity 3/4Blooms spring
Callery pear

Callery pear

Pyrus calleryana

Allergenicity 1/4Blooms spring
Purpleleaf plum variety

Purpleleaf plum variety

Prunus cerasifera

Allergenicity 1/4Blooms spring
(smooth) japanese maple

(smooth) japanese maple

Acer palmatum

Allergenicity 3/4Blooms spring
Willow oak

Willow oak

Quercus phellos

Allergenicity 4/4Blooms spring
Double chinese cherry

Double chinese cherry

Prunus serrulata

Allergenicity 1/4Blooms spring
Crimean linden

Crimean linden

Tilia euchlora

Allergenicity 2/4Blooms summer

Common questions

What is the pollen count in Renton, WA today?
Renton, WA is at a low 2 out of 5 on the Universal Pollen Index today, driven mainly by grass pollen. Over the next five days it ranges from 1 to 2 of 5.
Is grass pollen high in Renton, WA right now?
Grass pollen is low today at 2 of 5, and it's past its peak season. Most people won't have symptoms.
What plants are causing allergies in Renton, WA?
The main sources right now are Oak, Sorbus, Syringa, Carpinus, and Amelanchier.