What is the pollen count in Onset today?

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

What does a Moderate pollen count mean in Onset?

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 Onset right now?

The primary allergy triggers in Onset 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 Onset?

With Moderate pollen in Onset, 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 Onset?

Yes, weather directly affects pollen levels in Onset. Wind spreads pollen farther, rain washes it from the air, and humidity can either trap or disperse particles. Higher humidity today (82%) may help keep some pollen grounded.

Onset, MA Pollen Count Today

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

Live pollen forecast and air quality for Onset, Massachusetts

📍 Onset, MAToday · Jul 15

2/10

Breathability™ Score

Challenging day - reduce exposure during peak pollen times.

🌳Tree Pollen

None

🌱Grass Pollen

Moderate

🌿Weed Pollen

None

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Today's Pollen Levels in Onset

Grass pollen is slightly elevated at Moderate levels in Onset. Overall conditions are manageable for most people. With a Breathability™ Score of 2, today may feel like a tougher allergy day.

Breathability™ Score is 2/10
Tree pollen is None, led by Alder and Birch
Grass pollen is Moderate, led by Grass
Weed pollen is None, led by Ragweed and Mugwort
Air quality is Good today

Yesterday's Pollen in Onset

→Tree pollen: None yesterday, None today

↑Grass pollen: High yesterday, Very High todayHigher

→Weed pollen: None yesterday, None today

Pollen rose from High to Very High 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 feel symptoms sooner today. Grass pollen is elevated and air quality is Good, so lean toward shorter outings and cleaner indoor air.

Moderate allergy sufferers

Today may be rough. Limit prolonged outdoor time, keep indoor air filtered, and favor lower-exposure times of day.

Severe allergy sufferers

This may be a high-burden day. Minimize outdoor exposure where possible and focus on indoor spaces with filtered air.

5-Day Pollen Forecast

Today

Jul 15

Overall: Very High

Tree: None

Grass: Very High

Weed: None

Wind: 13 mph

Rain: 4%

Humidity: 63%

Thu

Jul 16

Overall: High

Tree: None

Grass: High

Weed: None

Wind: 13 mph

Rain: 3%

Humidity: 50%

Fri

Jul 17

Overall: High

Tree: None

Grass: High

Weed: None

Wind: 13 mph

Rain: 4%

Humidity: 63%

Sat

Jul 18

Overall: Moderate

Tree: None

Grass: Moderate

Weed: None

Wind: 13 mph

Rain: 59% (may wash pollen out)

Humidity: 76%

Sun

Jul 19

Overall: High

Tree: None

Grass: High

Weed: None

Wind: 13 mph

Rain: 36%

Humidity: 83%

Tree Pollen in Onset Today

Tree pollen in Onset 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 Onset Today

Grass pollen in Onset is Moderate today, reaching 53.45 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

Grass53.45 grains/m³

Weed Pollen in Onset Today

Weed pollen in Onset 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 Onset Today

🌬️

Air Quality

Good

Air Pollutant Breakdown

PM2.5Good

8 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

8 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

93 µg/m³

Elevated levels irritate airways and can worsen asthma symptoms.

Nitrogen Dioxide (NO2)Good

4 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

149 µg/m³

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

See the full Onset air quality report →

Weather in Onset Today

🌤️

Weather

75°F

Sunny

Humidity

82%

Wind

9 mph W

Feels Like

79°F

Pressure

1007 mb

Frequently Asked Questions

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