What is the pollen count in Chelmsford today?

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

What does a Low pollen count mean in Chelmsford?

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 Chelmsford right now?

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

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

Pollen levels are low in Chelmsford 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 Chelmsford?

Yes, weather directly affects pollen levels in Chelmsford. Wind spreads pollen farther, rain washes it from the air, and humidity can either trap or disperse particles. Higher humidity today (80%) may help keep some pollen grounded.

Chelmsford, MA Pollen Count Today

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

Live pollen forecast and air quality for Chelmsford, Massachusetts

📍 Chelmsford, MAToday · May 24

8/10

Breathability™ Score

Excellent breathing conditions for most plans today.

🌳Tree Pollen

Low

🌱Grass Pollen

Low

🌿Weed Pollen

None

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Today's Pollen Levels in Chelmsford

Tree pollen is slightly elevated at Low levels in Chelmsford. 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 Low, led by Birch and Alder
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 Chelmsford

→Tree pollen: Low yesterday, Low today

→Grass pollen: Low yesterday, Low today

→Weed pollen: None yesterday, None 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

May 24

Overall: Low

Tree: Low

Grass: Low

Weed: None

Wind: 10 mph

Rain: 92% (may wash pollen out)

Humidity: 87%

Mon

May 25

Overall: Low

Tree: None

Grass: Low

Weed: None

Wind: 8 mph

Rain: 88% (may wash pollen out)

Humidity: 96%

Tue

May 26

Overall: Moderate

Tree: None

Grass: Moderate

Weed: None

Wind: 8 mph

Rain: 0%

Humidity: 72%

Wed

May 27

Overall: Moderate

Tree: None

Grass: Moderate

Weed: None

Wind: 9 mph

Rain: 60% (may wash pollen out)

Humidity: 67%

Thu

May 28

Overall: Moderate

Tree: None

Grass: Moderate

Weed: None

Wind: 11 mph

Rain: 89% (may wash pollen out)

Humidity: 74%

Tree Pollen in Chelmsford Today

Tree pollen in Chelmsford is Low today, reaching 0.08 grains/m³. Birch and Alder are the dominant contributors. At this level, most people with tree pollen allergies will experience symptoms, and even mildly sensitive individuals may notice eye irritation or sneezing.

Common Symptoms

Sneezing
Runny or stuffy nose
Itchy, watery eyes
Scratchy throat
Sinus pressure

Species Breakdown

Birch0.08 grains/m³

Alder0 grains/m³

Hazel0 grains/m³

Oak0 grains/m³

Grass Pollen in Chelmsford Today

Grass pollen in Chelmsford is Low today, reaching 2.79 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

Grass2.79 grains/m³

Weed Pollen in Chelmsford Today

Weed pollen in Chelmsford 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 Chelmsford Today

🌬️

Air Quality

Good

Air Pollutant Breakdown

PM2.5Moderate

13 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

19 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

75 µg/m³

Elevated levels irritate airways and can worsen asthma symptoms.

Nitrogen Dioxide (NO2)Good

5 µg/m³

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

Sulfur Dioxide (SO2)Good

1.4 µg/m³

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

Carbon Monoxide (CO)Good

129.8 µg/m³

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

Weather in Chelmsford Today

🌧️

Weather

54°F

Light rain

Humidity

80%

Wind

7 mph SE

Feels Like

52°F

Pressure

1032 mb

Frequently Asked Questions

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