What is the pollen count in Cary today?

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

What will the pollen count be tomorrow in Cary?

Pollen in Cary is forecast to reach Moderate tomorrow. Weed 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 does a Moderate pollen count mean in Cary?

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 Cary right now?

The primary allergy triggers in Cary today are Weed (Ragweed and Mugwort). 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 Cary?

With Moderate pollen in Cary, 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 Cary?

Yes, weather directly affects pollen levels in Cary. Wind spreads pollen farther, rain washes it from the air, and humidity can either trap or disperse particles. Higher humidity today (84%) may help keep some pollen grounded.

Cary, IL Pollen Count Today

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

Live pollen forecast and air quality for Cary, Illinois

📍 Cary, ILToday · Oct 14

6/10

Breathability™ Score

Good day overall with a few allergy-aware adjustments.

🌳Tree Pollen

None

🌱Grass Pollen

None

🌿Weed Pollen

Moderate

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Today's Pollen Levels in Cary

Weed pollen is slightly elevated at Moderate levels in Cary. 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 None, led by Alder and Birch
Grass pollen is None, led by Grass
Weed pollen is Moderate, led by Ragweed and Mugwort
Air quality is Good today

Yesterday's Pollen in Cary

→Tree pollen: None yesterday, None today

→Grass pollen: None yesterday, None today

↓Weed pollen: High yesterday, Moderate todayLower

Pollen dropped from High to Moderate for weed pollen since yesterday.

Conditions are a bit better today. Symptoms may feel less intense than yesterday.

How Today's Pollen May Affect You

Mild allergy sufferers

You may notice mild irritation at peak times. Weed 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

Pollen in Cary eases to Low by Thursday.

Today

Oct 13

Overall: Moderate

Tree: None

Grass: None

Weed: Moderate

Wind: 17 mph (may spread pollen)

Rain: 17%

Humidity: 68%

Wed

Oct 14

Overall: Moderate

Tree: None

Grass: None

Weed: Moderate

Wind: 11 mph

Rain: 34%

Humidity: 83%

Thu

Oct 15

Overall: Low

Tree: None

Grass: None

Weed: Low

Wind: 11 mph

Rain: 92% (may wash pollen out)

Humidity: 89%

Fri

Oct 16

Overall: Moderate

Tree: None

Grass: None

Weed: Moderate

Wind: 23 mph (may spread pollen)

Rain: 51% (may wash pollen out)

Humidity: 81%

Sat

Oct 17

Overall: Moderate

Tree: None

Grass: None

Weed: Moderate

Wind: 13 mph

Rain: 6%

Humidity: 69%

Rain is likely Thursday (92% chance). The hour or two right after it stops is usually the cleanest air of the day. Plan around Friday though. Pollen often climbs the day after rain, when plants use the moisture to release a fresh burst.

Winds could reach 23 mph Friday. Gusts carry pollen miles from the plant that released it, so a windy day can feel worse than the count suggests.

Tree Pollen in Cary Today

Tree pollen in Cary 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 Cary Today

Grass pollen in Cary 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 Cary Today

Weed pollen in Cary is Moderate today, reaching 33.77 grains/m³. Ragweed and Mugwort 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

Ragweed33.77 grains/m³

Mugwort0 grains/m³

Air Quality in Cary Today

🌬️

Air Quality

Good

Air Pollutant Breakdown

PM2.5Good

11 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

11 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

32 µg/m³

Elevated levels irritate airways and can worsen asthma symptoms.

Nitrogen Dioxide (NO2)Good

23.2 µg/m³

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

Sulfur Dioxide (SO2)Good

1 µg/m³

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

Carbon Monoxide (CO)Good

332 µg/m³

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

See the full Cary air quality report →

Weather in Cary Today

🌧️

Weather

62°F

Patchy rain nearby

Humidity

84%

Wind

7 mph NW

Feels Like

61°F

Pressure

1013 mb

Frequently Asked Questions

When pollen keeps winning, see an allergist

Pollen shifts week to week in Cary. 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 Illinois →

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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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