What is the pollen count in Harvard today?

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

What does a Low pollen count mean in Harvard?

A Low pollen count means concentrations are minimal. Most people, including those with mild allergies, can spend time outdoors comfortably.

What are the main allergy triggers in Harvard right now?

Pollen levels across all types are currently low in Harvard. Most allergy sufferers should find conditions manageable today.

What should allergy sufferers do when pollen is Low in Harvard?

Pollen levels are low in Harvard today, so most outdoor activities should be comfortable. It is still a good idea to check levels daily, since conditions can change quickly with wind and weather shifts.

Does weather affect pollen levels in Harvard?

Yes, weather directly affects pollen levels in Harvard. Wind spreads pollen farther, rain washes it from the air, and humidity can either trap or disperse particles. Higher humidity today (73%) may help keep some pollen grounded.

Harvard, MA Pollen Count Today

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

Live pollen forecast and air quality for Harvard, Massachusetts

📍 Harvard, MAToday · May 31

6/10

Breathability™ Score

Good day overall with a few allergy-aware adjustments.

🌳Tree Pollen

None

🌱Grass Pollen

Low

🌿Weed Pollen

None

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Today's Pollen Levels in Harvard

Grass pollen is slightly elevated at Low levels in Harvard. 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 None, led by Ragweed and Mugwort
Air quality is Good today

Yesterday's Pollen in Harvard

→Tree pollen: None yesterday, None today

↑Grass pollen: None yesterday, Moderate todayHigher

→Weed pollen: None yesterday, None today

Pollen rose from None to Moderate for grass pollen since yesterday.

You may notice stronger symptoms today compared to yesterday.

How Today's Pollen May Affect You

Mild allergy sufferers

You may notice mild irritation at peak times. Grass 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

May 31

Overall: Moderate

Tree: None

Grass: Moderate

Weed: None

Wind: 10 mph

Rain: 92% (may wash pollen out)

Humidity: 73%

Mon

Jun 1

Overall: Moderate

Tree: None

Grass: Moderate

Weed: None

Wind: 10 mph

Rain: 87% (may wash pollen out)

Humidity: 89%

Tue

Jun 2

Overall: Moderate

Tree: None

Grass: Moderate

Weed: None

Wind: 6 mph

Rain: 0%

Humidity: 66%

Wed

Jun 3

Overall: High

Tree: None

Grass: High

Weed: None

Wind: 7 mph

Rain: 0%

Humidity: 58%

Thu

Jun 4

Overall: High

Tree: None

Grass: High

Weed: None

Wind: 9 mph

Rain: 0%

Humidity: 60%

Tree Pollen in Harvard Today

Tree pollen in Harvard 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 Harvard Today

Grass pollen in Harvard is Low today, reaching 14.43 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 individuals

Species Breakdown

Grass14.43 grains/m³

Weed Pollen in Harvard Today

Weed pollen in Harvard is None today. Weed pollen season runs from late summer into fall (August through October), with ragweed as the primary trigger for most allergy sufferers. Current levels are low enough that most people should feel comfortable outdoors.

Species Breakdown

Ragweed0 grains/m³

Mugwort0 grains/m³

Air Quality in Harvard 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

56 µg/m³

Elevated levels irritate airways and can worsen asthma symptoms.

Nitrogen Dioxide (NO2)Good

5.9 µg/m³

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

Sulfur Dioxide (SO2)Good

1.3 µg/m³

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

Carbon Monoxide (CO)Good

113.8 µg/m³

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

Weather in Harvard Today

🌤️

Weather

48°F

Sunny

Humidity

73%

Wind

3 mph WNW

Feels Like

45°F

Pressure

1015 mb

Frequently Asked Questions

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