Washington, United States

Seattle, WA Pollen Count Today

View the current allergy index, primary allergen, tree, grass, and weed pollen levels, plus the 5-day pollen forecast for Seattle.

Today's pollen count in Seattle

Today in Seattle, Washington, the forecasted pollen level is moderate with an allergy index of 3. The primary allergen is Grasses. Use the forecast below to see whether conditions are likely to rise, ease, or stay steady over the next few days.

AllergyAva shows forecasted pollen levels and allergy risk estimates for Seattle. Actual exposure can vary by neighborhood, weather, and time outdoors.

Current level
Moderate
Allergy index
3
Main allergen
Grasses

Pollen Level

Moderate Risk
3

Pollen Index

Primary Allergen

Grasses

Consider taking antihistamines before heading outside. Keep windows closed.

72°

Temp

55%

Humidity

8

Wind mph

Source: Includes pollen data from Google

Updated June 23, 2026 at 12:21 PM ET.

Check pollen in another city or ZIP code

5-Day Pollen Forecast

Best day this week

Fri - Low

Worst day this week

Thu - Moderate

Today
84°/61°
3
Moderate
Tree1
Grass3
Weed0
Tomorrow
84°/61°
3
Moderate
Tree1
Grass3
Weed0
Thu
84°/61°
3
Moderate
Tree1
Grass3
Weed0
Fri
81°/59°
2
Low
Tree1
Grass2
Weed0
Sat
81°/59°
2
Low
Tree1
Grass2
Weed0
None
Very Low
Low
Moderate
High
Very High

Allergen Breakdown

Grasses
Moderate
Pine
Out of seasonVery Low

Pollen & Allergy Guide for Seattle, WA

Seattle, Washington residents can experience significant pollen exposure throughout the year. Tree pollen typically peaks during spring months, while grass pollen dominates in summer. Fall brings elevated ragweed levels, which is one of the most common allergens in the region.

When Is Allergy Season in Seattle?

Allergy season in Seattle generally begins in early spring as trees start releasing pollen. The most intense period varies by allergen type. Monitoring daily pollen counts with Allergy Ava helps you plan ahead and manage symptoms proactively.

Tips for Managing Allergies in Seattle

Track your daily pollen exposure, consult with a local allergist for personalized treatment, and consider starting preventive medications 2-4 weeks before your peak allergy season. Indoor air quality management with HEPA filters can also make a significant difference.

Seattle allergy season calendar

Tree pollen

Spring

Often drives early-season symptoms

Grass pollen

In season now

Late spring to summer

Can rise around lawns, parks, and open areas

Ragweed/weed pollen

Late summer to fall

Major fall allergy trigger

Mold spores

Varies

Often affected by moisture and decaying leaves

Common pollen triggers around Seattle

TriggerTypical seasonWhat to know
Tree pollenSpringOften drives early-season symptoms
Grass pollenLate spring to summerCan rise around lawns, parks, and open areas
Ragweed/weed pollenLate summer to fallMajor fall allergy trigger
Mold sporesVariesOften affected by moisture and decaying leaves

Seattle pollen count today and Puget Sound allergy patterns

Seattle pollen conditions can shift with rain breaks, marine air, tree cover, and grass activity around the Puget Sound. People searching for the Seattle pollen count often want a quick answer for today's allergy risk before commuting, running, or spending time outdoors.

Tree pollen is often more noticeable in spring, while grass pollen can become a larger factor as weather warms. A local Seattle forecast helps show whether current conditions are easing after rain or rising during dry, breezy stretches.

Frequently asked questions about pollen in Seattle

What is the pollen count in Seattle today?

Today in Seattle, Washington, the pollen level is moderate with an allergy index of 3. The main allergen to watch is Grasses.

When is allergy season in Seattle, Washington?

Allergy season in Seattle, Washington can vary by allergen and weather conditions. Tree pollen often rises in spring, grass pollen becomes more active in late spring and summer, and weed pollen can remain elevated later in the year depending on local climate and vegetation.

How often should I check the pollen forecast in Seattle?

If you have seasonal allergies in Seattle, it is helpful to check the pollen forecast daily during peak allergy periods. Shifts in wind, rainfall, temperature, and humidity can all change local pollen exposure from one day to the next.

What pollen types affect people in Seattle, Washington?

Seattle residents may be affected by tree pollen, grass pollen, and weed pollen during different parts of the year. The strongest trigger depends on the season, nearby vegetation, and current weather conditions.