What is the pollen count in New Haven today?

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

What will the pollen count be tomorrow in New Haven?

Pollen in New Haven is forecast to reach None tomorrow. Tree pollen is the main driver. That's a full-day figure, so early morning usually runs higher than late afternoon. Check again in the morning, because wind and rain can shift it overnight.

What are the main allergy triggers in New Haven right now?

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

What should allergy sufferers do when pollen is None in New Haven?

Pollen levels are low in New Haven 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 Haven?

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

New Haven, CT Pollen Count Today

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

Live pollen forecast and air quality for New Haven, Connecticut

📍 New Haven, CTToday · Sep 20

10/10

Breathability™ Score

Excellent breathing conditions for most plans today.

🌳Tree Pollen

None

🌱Grass Pollen

None

🌿Weed Pollen

None

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How Today's Pollen May Affect You

Mild allergy sufferers

Most plans can stay the same today. Pollen is generally low 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

Pollen in New Haven holds at None every day through Thursday.

Today

Sep 20

Overall: None

Tree: None

Grass: None

Weed: None

Wind: 11 mph

Rain: 87% (may wash pollen out)

Humidity: 81%

Mon

Sep 21

Overall: None

Tree: None

Grass: None

Weed: None

Wind: 16 mph (may spread pollen)

Rain: 65% (may wash pollen out)

Humidity: 76%

Tue

Sep 22

Overall: None

Tree: None

Grass: None

Weed: None

Wind: 16 mph (may spread pollen)

Rain: 88% (may wash pollen out)

Humidity: 84%

Wed

Sep 23

Overall: None

Tree: None

Grass: None

Weed: None

Wind: 21 mph (may spread pollen)

Rain: 61% (may wash pollen out)

Humidity: 71%

Thu

Sep 24

Overall: None

Tree: None

Grass: None

Weed: None

Wind: 27 mph (may spread pollen)

Rain: 91% (may wash pollen out)

Humidity: 88%

Rain is likely Monday (65% chance). The hour or two right after it stops is usually the cleanest air of the day. Plan around Tuesday though. Pollen often climbs the day after rain, when plants use the moisture to release a fresh burst.

Winds could reach 21 mph Wednesday. Gusts carry pollen miles from the plant that released it, so a windy day can feel worse than the count suggests.

Tree Pollen in New Haven Today

Tree pollen in New Haven 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 New Haven Today

Grass pollen in New Haven is None today. Grass pollen season typically peaks from late spring through summer (May through August in most regions). On low-count days, grass allergy sufferers can generally spend time outdoors without significant symptoms.

Species Breakdown

Grass0 grains/m³

Weed Pollen in New Haven Today

Weed pollen in New Haven 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 Haven Today

🌬️

Air Quality

Good

Air Pollutant Breakdown

PM2.5Good

6 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

10 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

61 µg/m³

Elevated levels irritate airways and can worsen asthma symptoms.

Nitrogen Dioxide (NO2)Good

2.5 µg/m³

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

Sulfur Dioxide (SO2)Good

0.6 µg/m³

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

Carbon Monoxide (CO)Good

140 µg/m³

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

See the full New Haven air quality report →

Weather in New Haven Today

🌤️

Weather

62°F

Overcast

Humidity

68%

Wind

8 mph SE

Feels Like

58°F

Pressure

1021 mb

Frequently Asked Questions

When pollen keeps winning, see an allergist

Pollen shifts week to week in New Haven. 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 Connecticut →

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Allergy Guides and Resources

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

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