What is the pollen count in Fresno today?

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

What will the pollen count be tomorrow in Fresno?

Pollen in Fresno 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 High pollen count mean in Fresno?

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 Fresno right now?

The primary allergy triggers in Fresno 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 High in Fresno?

When pollen is High in Fresno, 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 Fresno?

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

Fresno, CA Pollen Count Today

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

Live pollen forecast and air quality for Fresno, California

📍 Fresno, CAToday · Sep 21

1/10

Breathability™ Score

Very tough breathing conditions - keep outdoor exposure brief when possible.

🌳Tree Pollen

None

🌱Grass Pollen

Low

🌿Weed Pollen

High

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Today's Pollen Levels in Fresno

Weed pollen is the dominant contributor today in Fresno, with levels reaching High. Other pollen types are not a significant factor right now. With a Breathability™ Score of 1, today may feel like a tougher allergy day.

Breathability™ Score is 1/10
Tree pollen is None, led by Alder and Birch
Grass pollen is Low, led by Grass
Weed pollen is High, led by Ragweed and Mugwort
Air quality is Unhealthy for Sensitive Groups today

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How Today's Pollen May Affect You

Mild allergy sufferers

You may feel symptoms sooner today. Weed pollen is elevated and air quality is Unhealthy for Sensitive Groups, so lean toward shorter outings and cleaner indoor air.

Moderate allergy sufferers

Today may be rough. Limit prolonged outdoor time, keep indoor air filtered, and favor lower-exposure times of day.

Severe allergy sufferers

This may be a high-burden day. Minimize outdoor exposure where possible and focus on indoor spaces with filtered air.

5-Day Pollen Forecast

Pollen in Fresno drops to Moderate tomorrow and holds there through Friday.

Today

Sep 21

Overall: High

Tree: None

Grass: Low

Weed: High

Wind: 10 mph

Rain: 5%

Humidity: 32%

Tue

Sep 22

Overall: Moderate

Tree: None

Grass: Low

Weed: Moderate

Wind: 8 mph

Rain: 1%

Humidity: 33%

Wed

Sep 23

Overall: Moderate

Tree: None

Grass: Low

Weed: Moderate

Wind: 5 mph

Rain: 0%

Humidity: 23%

Thu

Sep 24

Overall: Moderate

Tree: None

Grass: Low

Weed: Moderate

Wind: 15 mph (may spread pollen)

Rain: 1%

Humidity: 19%

Fri

Sep 25

Overall: Moderate

Tree: None

Grass: Low

Weed: Moderate

Wind: 14 mph

Rain: 1%

Humidity: 23%

Tree Pollen in Fresno Today

Tree pollen in Fresno 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

Oak pollen in Fresno →0 grains/m³

Grass Pollen in Fresno Today

Grass pollen in Fresno is Low today, reaching 12.43 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

Grass pollen in Fresno →12.43 grains/m³

Weed Pollen in Fresno Today

Weed pollen in Fresno is High today, reaching 100.88 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

Ragweed pollen in Fresno →100.88 grains/m³

Mugwort0 grains/m³

Air Quality in Fresno Today

🌬️

Air Quality

Unhealthy for Sensitive Groups

Air Pollutant Breakdown

PM2.5Unhealthy

64 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.

PM10Moderate

72 µg/m³

Larger particles up to 10 micrometers, like dust or pollen. They can irritate your airways and worsen allergies or asthma.

Ozone (O3)Moderate

149 µg/m³

Elevated levels irritate airways and can worsen asthma symptoms.

Nitrogen Dioxide (NO2)Good

2.7 µg/m³

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

Sulfur Dioxide (SO2)Good

2.8 µg/m³

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

Carbon Monoxide (CO)Good

164 µg/m³

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

See the full Fresno air quality report →

Weather in Fresno Today

🌤️

Weather

84°F

Smoky haze

Humidity

22%

Wind

6 mph NNW

Feels Like

79°F

Pressure

1010 mb

Frequently Asked Questions

When pollen keeps winning, see an allergist

Weed pollen is running High in Fresno today. 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 California →

Get free daily pollen alerts

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

Allergy Guides and Resources

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

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Related Cities in California

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Fresno pollen by allergen

Grass pollen Oak pollen Mulberry pollen Olive pollen Ragweed pollen