What is the pollen count in New Castle today?

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

What does a Low pollen count mean in New Castle?

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 New Castle right now?

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

What should allergy sufferers do when pollen is Low in New Castle?

Pollen levels are low in New Castle 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 New Castle?

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

New Castle, DE Pollen Count Today

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

Live pollen forecast and air quality for New Castle, Delaware

📍 New Castle, DEToday · May 15

6/10

Breathability™ Score

Good day overall with a few allergy-aware adjustments.

🌳Tree Pollen

Low

🌱Grass Pollen

Low

🌿Weed Pollen

None

mypollenpal.comAdd to your site →

Today's Pollen Levels in New Castle

Tree pollen is slightly elevated at Low levels in New Castle. 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 Low, led by Oak and Birch
Grass pollen is Low, led by Grass
Weed pollen is None, 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. Tree 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 15

Overall: Moderate

Tree: Moderate

Grass: Low

Weed: None

Wind: 14 mph

Rain: 0%

Humidity: 67%

Sat

May 16

Overall: Moderate

Tree: Low

Grass: Moderate

Weed: None

Wind: 10 mph

Rain: 0%

Humidity: 65%

Sun

May 17

Overall: Low

Tree: Low

Grass: Low

Weed: None

Wind: 13 mph

Rain: 81% (may wash pollen out)

Humidity: 71%

Mon

May 18

Overall: Low

Tree: Low

Grass: Low

Weed: None

Wind: 8 mph

Rain: 81% (may wash pollen out)

Humidity: 73%

Tue

May 19

Overall: Moderate

Tree: Low

Grass: Moderate

Weed: None

Wind: 13 mph

Rain: 0%

Humidity: 71%

Tree Pollen in New Castle Today

Tree pollen in New Castle is Low today, reaching 9.89 grains/m³. Oak and Birch 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

Oak9.89 grains/m³

Birch6.44 grains/m³

Alder0 grains/m³

Hazel0 grains/m³

Grass Pollen in New Castle Today

Grass pollen in New Castle is Low today, reaching 7.71 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

Grass7.71 grains/m³

Weed Pollen in New Castle Today

Weed pollen in New Castle 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 New Castle Today

🌬️

Air Quality

Good

Air Pollutant Breakdown

PM2.5Good

3 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

3 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

5.2 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

183.8 µg/m³

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

Weather in New Castle Today

🌤️

Weather

52°F

Overcast

Humidity

61%

Wind

12 mph NW

Feels Like

48°F

Pressure

1011 mb

Frequently Asked Questions

Get free daily pollen alerts

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

Join 1,313 allergy sufferers getting daily pollen alerts.

Allergy Guides and Resources

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

Browse all guides →

Related Cities in Delaware

Looking for more places? Browse popular cities or return to the Delaware page.