Wisconsin, United States

Green Bay, WI Pollen Count Today

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

Today's pollen count in Green Bay

Today in Green Bay, Wisconsin, the forecasted pollen level is very low with an allergy index of 1. The primary allergen is Birch. 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 Green Bay. Actual exposure can vary by neighborhood, weather, and time outdoors.

Current level
Very Low
Allergy index
1
Main allergen
Birch

Pollen Level

Very Low Risk
1

Pollen Index

Primary Allergen

Birch

Pollen exposure is very low. Most people can spend time outdoors with minimal allergy concerns.

72°

Temp

55%

Humidity

8

Wind mph

Source: Includes pollen data from Google

Updated May 12, 2026 at 6:42 PM ET.

Check pollen in another city or ZIP code

5-Day Pollen Forecast

Best day this week

Today - Very Low

Worst day this week

Sat - Low

Today
78°/57°
1
Very Low
Tree1
Grass1
Weed0
Tomorrow
81°/59°
2
Low
Tree2
Grass1
Weed0
Thu
81°/59°
2
Low
Tree2
Grass1
Weed0
Fri
78°/57°
1
Very Low
Tree1
Grass1
Weed0
Sat
81°/59°
2
Low
Tree2
Grass2
Weed0
None
Very Low
Low
Moderate
High
Very High

Allergen Breakdown

Maple
Out of seasonVery Low
Birch
Very Low
Ash
Out of seasonVery Low
Pine
Very Low
Oak
Very Low
Grasses
Out of seasonVery Low

Pollen & Allergy Guide for Green Bay, WI

Green Bay, Wisconsin 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 Green Bay?

Allergy season in Green Bay 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 Green Bay

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.

Green Bay allergy season calendar

Tree pollen

In season now

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 Green Bay

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

Frequently asked questions about pollen in Green Bay

What is the pollen count in Green Bay today?

Today in Green Bay, Wisconsin, the pollen level is very low with an allergy index of 1. The main allergen to watch is Birch.

When is allergy season in Green Bay, Wisconsin?

Allergy season in Green Bay, Wisconsin 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 Green Bay?

If you have seasonal allergies in Green Bay, 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 Green Bay, Wisconsin?

Green Bay 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.