What is the pollen count in Boston today?

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

What does a Moderate pollen count mean in Boston?

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 Boston right now?

The primary allergy triggers in Boston today are Weed (Ragweed and Mugwort). 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 Boston?

With Moderate pollen in Boston, 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 Boston?

Yes, weather directly affects pollen levels in Boston. Wind spreads pollen farther, rain washes it from the air, and humidity can either trap or disperse particles.

Boston, MA Pollen Count Today

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

Live pollen forecast and air quality for Boston, Massachusetts

📍 Boston, MAToday · Aug 29

6/10

Breathability™ Score

Good day overall with a few allergy-aware adjustments.

🌳Tree Pollen

None

🌱Grass Pollen

Low

🌿Weed Pollen

Moderate

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Today's Pollen Levels in Boston

Weed pollen is slightly elevated at Moderate levels in Boston. Overall conditions are manageable for most people. With a Breathability™ Score of 6, conditions are mixed and may vary through the day.

Breathability™ Score is 6/10
Tree pollen is None, led by Alder and Birch
Grass pollen is Low, led by Grass
Weed pollen is Moderate, led by Ragweed and Mugwort
Air quality is Good today

How Today's Pollen May Affect You

Mild allergy sufferers

You may notice mild irritation at peak times. Weed pollen is elevated; consider shorter midday exposure and keep water handy.

Moderate allergy sufferers

Plan around peak pollen windows. Try errands early or later, and consider a mask in high-traffic outdoor areas.

Severe allergy sufferers

Use high-protection habits today: shorter trips, cleaner indoor air, and reduced exposure during peak pollen hours.

5-Day Pollen Forecast

Today

Aug 29

Overall: Moderate

Tree: None

Grass: Moderate

Weed: Moderate

Wind: 10 mph

Rain: 6%

Humidity: 57%

Sun

Aug 30

Overall: Moderate

Tree: None

Grass: Low

Weed: Moderate

Wind: 12 mph

Rain: 17%

Humidity: 52%

Mon

Aug 31

Overall: Moderate

Tree: None

Grass: Low

Weed: Moderate

Wind: 11 mph

Rain: 16%

Humidity: 72%

Tue

Sep 1

Overall: Low

Tree: None

Grass: Low

Weed: Low

Wind: 10 mph

Rain: 90% (may wash pollen out)

Humidity: 90%

Wed

Sep 2

Overall: Moderate

Tree: None

Grass: Low

Weed: Moderate

Wind: 9 mph

Rain: 78% (may wash pollen out)

Humidity: 86%

Tree Pollen in Boston Today

Tree pollen in Boston 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

Oak0 grains/m³

Grass Pollen in Boston Today

Grass pollen in Boston is Low today, reaching 8.41 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

Grass8.41 grains/m³

Weed Pollen in Boston Today

Weed pollen in Boston is Moderate today, reaching 34.34 grains/m³. Ragweed and Mugwort 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

Ragweed34.34 grains/m³

Mugwort26.97 grains/m³

Air Quality in Boston Today

🌬️

Air Quality

Good

Air Pollutant Breakdown

PM2.5Good

5 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

5 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

54 µg/m³

Elevated levels irritate airways and can worsen asthma symptoms.

Nitrogen Dioxide (NO2)Good

5.4 µg/m³

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

Sulfur Dioxide (SO2)Good

0.8 µg/m³

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

Carbon Monoxide (CO)Good

129 µg/m³

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

See the full Boston air quality report →

Weather in Boston Today

☀️

Weather

64°F

Clear

Humidity

67%

Wind

9 mph NNW

Feels Like

60°F

Pressure

1020 mb

Frequently Asked Questions

When pollen keeps winning, see an allergist

Pollen shifts week to week in Boston. If cetirizine (Zyrtec) or a steroid nasal spray stopped holding your symptoms down, or they drag on for months at a time, a board-certified allergist can test exactly what you react to and treat the cause instead of the symptom.

See 5 board-certified allergists in Massachusetts →

Get free daily pollen alerts

Morning alerts for Boston when pollen is high. One email a day, only when it matters.

Allergy Guides and Resources

Seasonal pollen guides, daily city rankings, and practical tips for managing your allergies.

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