What is the pollen count in Chicago today?

Today's pollen levels in Chicago: Tree pollen is None, Grass pollen is Moderate, Weed pollen is Low. Grass pollen is the dominant type right now, driven by Grass.

What does a Moderate pollen count mean in Chicago?

A Moderate pollen count means levels are noticeable. People with pollen sensitivities may experience mild symptoms like sneezing or itchy eyes, especially during extended time outdoors.

What are the main allergy triggers in Chicago right now?

The primary allergy triggers in Chicago today are Grass (Grass). These pollen types are at elevated levels and are most likely to cause symptoms for sensitive people.

What should allergy sufferers do when pollen is Moderate in Chicago?

With Moderate pollen in Chicago, basic precautions help: keep windows closed during peak hours, rinse off after outdoor time, and monitor your symptoms. Most activities can continue with awareness.

Does weather affect pollen levels in Chicago?

Yes, weather directly affects pollen levels in Chicago. Wind spreads pollen farther, rain washes it from the air, and humidity can either trap or disperse particles. Higher humidity today (74%) may help keep some pollen grounded.

Chicago, IL Pollen Count Today

Name: Pollen Data for Chicago
Creator: MyPollenPal
Keywords: pollen, air quality, allergies, forecast

Live pollen forecast and air quality for Chicago, Illinois

📍 Chicago, ILToday · Aug 8

8/10

Breathability™ Score

Excellent breathing conditions for most plans today.

🌳Tree Pollen

None

🌱Grass Pollen

Moderate

🌿Weed Pollen

Low

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Today's Pollen Levels in Chicago

Grass pollen is slightly elevated at Moderate levels in Chicago. Overall conditions are manageable for most people. With a Breathability™ Score of 8, breathing conditions look good for most people.

Breathability™ Score is 8/10
Tree pollen is None, led by Alder and Birch
Grass pollen is Moderate, led by Grass
Weed pollen is Low, led by Mugwort and Ragweed
Air quality is Good today

Yesterday's Pollen in Chicago

→Tree pollen: None yesterday, None today

→Grass pollen: Low yesterday, Low today

→Weed pollen: Low yesterday, Low today

How Today's Pollen May Affect You

Mild allergy sufferers

Most plans can stay the same today. Grass pollen is elevated and air quality is Good, so a quick rinse after time outside may help.

Moderate allergy sufferers

Conditions look manageable with routine precautions. Keep windows closed during peak pollen periods and shower after outdoor time.

Severe allergy sufferers

Even on a better day, keep your usual high-protection routine and avoid long exposure when pollen spikes.

5-Day Pollen Forecast

Today

Aug 7

Overall: Low

Tree: None

Grass: Low

Weed: Low

Wind: 7 mph

Rain: 12%

Humidity: 85%

Sat

Aug 8

Overall: Low

Tree: None

Grass: Low

Weed: Low

Wind: 8 mph

Rain: 5%

Humidity: 69%

Sun

Aug 9

Overall: Low

Tree: None

Grass: Low

Weed: Low

Wind: 18 mph (may spread pollen)

Rain: 36%

Humidity: 69%

Mon

Aug 10

Overall: Low

Tree: None

Grass: Low

Weed: Low

Wind: 13 mph

Rain: 79% (may wash pollen out)

Humidity: 79%

Tue

Aug 11

Overall: Low

Tree: None

Grass: Low

Weed: Low

Wind: 16 mph (may spread pollen)

Rain: 88% (may wash pollen out)

Humidity: 94%

Tree Pollen in Chicago Today

Tree pollen in Chicago is None today. Tree pollen season typically runs from early spring through late May, peaking when deciduous trees release their pollen. On low days like today, outdoor activities are generally comfortable for most allergy sufferers.

Species Breakdown

Alder0 grains/m³

Birch0 grains/m³

Hazel0 grains/m³

Oak pollen in Chicago →0 grains/m³

Grass Pollen in Chicago Today

Grass pollen in Chicago is Moderate today, reaching 27.97 grains/m³. Grass is currently elevated. People with grass pollen sensitivity may notice nasal congestion and itchy eyes, especially during outdoor activities.

Common Symptoms

Itchy nose and eyes
Sneezing fits
Nasal congestion
Watery eyes
Coughing or wheezing for sensitive people

Species Breakdown

Grass pollen in Chicago →27.97 grains/m³

Weed Pollen in Chicago Today

Weed pollen in Chicago is Low today, reaching 7.30 grains/m³. Mugwort and Ragweed are the primary driver. Ragweed is the most common allergen in this category, and elevated levels can trigger persistent symptoms even in people who are only mildly sensitive.

Common Symptoms

Persistent sneezing
Runny nose
Itchy eyes and throat
Nasal congestion
Fatigue from prolonged exposure

Species Breakdown

Mugwort7.30 grains/m³

Ragweed pollen in Chicago →0 grains/m³

Air Quality in Chicago Today

🌬️

Air Quality

Good

Air Pollutant Breakdown

PM2.5Good

10 µg/m³

Tiny particles smaller than 2.5 micrometers that can reach deep into your lungs and bloodstream. High levels can affect breathing and heart health.

PM10Good

10 µg/m³

Larger particles up to 10 micrometers, like dust or pollen. They can irritate your airways and worsen allergies or asthma.

Ozone (O3)Good

85 µg/m³

Elevated levels irritate airways and can worsen asthma symptoms.

Nitrogen Dioxide (NO2)Good

19.2 µg/m³

A respiratory irritant from vehicle exhaust that can trigger inflammation in sensitive airways.

Sulfur Dioxide (SO2)Good

2.5 µg/m³

Even brief exposure can tighten airways, especially for people with asthma.

Carbon Monoxide (CO)Good

215 µg/m³

High levels reduce oxygen delivery in the body, compounding breathing difficulty on high-pollen days.

See the full Chicago air quality report →

Weather in Chicago Today

☀️

Weather

74°F

Clear

Humidity

74%

Wind

6 mph SSW

Feels Like

76°F

Pressure

1013 mb

Frequently Asked Questions

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Chicago pollen by allergen

Ragweed pollen Grass pollen Oak pollen Maple pollen