What is the pollen count in La Crescenta today?

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

What does a High pollen count mean in La Crescenta?

A High pollen count means concentrations are significant. Most allergy sufferers will notice symptoms, and even people with mild sensitivity may feel some irritation.

What are the main allergy triggers in La Crescenta right now?

The primary allergy triggers in La Crescenta 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 High in La Crescenta?

When pollen is High in La Crescenta, limit outdoor time during midday when concentrations peak. Keep windows closed, shower after being outside, and consider taking antihistamines before symptoms start.

Does weather affect pollen levels in La Crescenta?

Yes, weather directly affects pollen levels in La Crescenta. Wind spreads pollen farther, rain washes it from the air, and humidity can either trap or disperse particles. Higher humidity today (74%) may help keep some pollen grounded.

La Crescenta, CA Pollen Count Today

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

Live pollen forecast and air quality for La Crescenta, California

📍 La Crescenta, CAToday · Jul 17

4/10

Breathability™ Score

Mixed conditions - sensitive groups may want extra precautions.

🌳Tree Pollen

None

🌱Grass Pollen

High

🌿Weed Pollen

Low

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Today's Pollen Levels in La Crescenta

Grass pollen is the dominant contributor today in La Crescenta, with levels reaching High. Other pollen types are not a significant factor right now. With a Breathability™ Score of 4, conditions are mixed and may vary through the day.

Breathability™ Score is 4/10
Tree pollen is None, led by Alder and Birch
Grass pollen is High, led by Grass
Weed pollen is Low, led by Mugwort and Ragweed
Air quality is Moderate today

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Yesterday's Pollen in La Crescenta

→Tree pollen: None yesterday, None today

→Grass pollen: Moderate yesterday, Moderate today

→Weed pollen: Low yesterday, Low today

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

Jul 16

Overall: Moderate

Tree: None

Grass: Moderate

Weed: Low

Wind: 9 mph

Rain: 3%

Humidity: 57%

Fri

Jul 17

Overall: Moderate

Tree: None

Grass: Moderate

Weed: Low

Wind: 9 mph

Rain: 5%

Humidity: 64%

Sat

Jul 18

Overall: Moderate

Tree: None

Grass: Moderate

Weed: Low

Wind: 9 mph

Rain: 2%

Humidity: 52%

Sun

Jul 19

Overall: Moderate

Tree: None

Grass: Moderate

Weed: Low

Wind: 9 mph

Rain: 2%

Humidity: 49%

Mon

Jul 20

Overall: Moderate

Tree: None

Grass: Moderate

Weed: Moderate

Wind: 9 mph

Rain: 2%

Humidity: 43%

Tree Pollen in La Crescenta Today

Tree pollen in La Crescenta 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 La Crescenta Today

Grass pollen in La Crescenta is High today, reaching 127.78 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

Grass127.78 grains/m³

Weed Pollen in La Crescenta Today

Weed pollen in La Crescenta is Low today, reaching 19.33 grains/m³. Mugwort and Ragweed are the primary driver. Ragweed is the most common allergen in this category, and elevated levels can trigger persistent symptoms even in people who are only mildly sensitive.

Common Symptoms

Persistent sneezing
Runny nose
Itchy eyes and throat
Nasal congestion
Fatigue from prolonged exposure

Species Breakdown

Mugwort19.33 grains/m³

Ragweed0 grains/m³

Air Quality in La Crescenta Today

🌬️

Air Quality

Moderate

Air Pollutant Breakdown

PM2.5Moderate

20 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

26 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

35 µg/m³

Elevated levels irritate airways and can worsen asthma symptoms.

Nitrogen Dioxide (NO2)Good

34.5 µg/m³

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

Sulfur Dioxide (SO2)Good

3.8 µg/m³

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

Carbon Monoxide (CO)Good

151 µg/m³

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

See the full La Crescenta air quality report →

Weather in La Crescenta Today

☀️

Weather

74°F

Clear

Humidity

74%

Wind

4 mph SSE

Feels Like

77°F

Pressure

1012 mb

Frequently Asked Questions

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