Colusa, CA Pollen Count Today

Live pollen forecast and air quality for Colusa, California

📍 Colusa, CAToday · May 24
2/10
Breathability™ Score
Challenging day - reduce exposure during peak pollen times.
🌳Tree Pollen
Moderate
🌱Grass Pollen
Very High
🌿Weed Pollen
None
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Today's Pollen Levels in Colusa

Grass pollen and Tree pollen are both elevated today in Colusa, which is driving the Breathability™ Score down. People sensitive to multiple pollen types may notice stronger symptoms. With a Breathability™ Score of 2, today may feel like a tougher allergy day.

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How Today's Pollen May Affect You

Mild allergy sufferers
You may feel symptoms sooner today. Grass pollen is elevated and air quality is Good, so lean toward shorter outings and cleaner indoor air.
Moderate allergy sufferers
Today may feel challenging. Limit prolonged outdoor time, keep indoor air filtered, and prioritize 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

Today
May 23
Overall: Very High
Tree: Moderate
Grass: Very High
Weed: None
Wind: 11 mph
Rain: 0%
Humidity: 53%
Sun
May 24
Overall: Very High
Tree: Moderate
Grass: Very High
Weed: None
Wind: 11 mph
Rain: 0%
Humidity: 44%
Mon
May 25
Overall: Very High
Tree: Moderate
Grass: Very High
Weed: None
Wind: 18 mph (may spread pollen)
Rain: 0%
Humidity: 40%
Tue
May 26
Overall: Very High
Tree: Moderate
Grass: Very High
Weed: None
Wind: 11 mph
Rain: 0%
Humidity: 53%
Wed
May 27
Overall: Very High
Tree: Low
Grass: Very High
Weed: None
Wind: 14 mph
Rain: 0%
Humidity: 39%

Tree Pollen in Colusa Today

Tree pollen in Colusa is Moderate today, reaching 77.26 grains/m³. Birch and Oak 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

Birch77.26 grains/m³
Oak0.45 grains/m³
Alder0 grains/m³
Hazel0 grains/m³

Grass Pollen in Colusa Today

Grass pollen in Colusa is Very High today, reaching 343.71 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

Grass343.71 grains/m³

Weed Pollen in Colusa Today

Weed pollen in Colusa 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 Colusa Today

🌬️
Air Quality
Good
Good

Air Pollutant Breakdown

PM2.5Good
8 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
12 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
48 µg/m³
Elevated levels irritate airways and can worsen asthma symptoms.
Nitrogen Dioxide (NO2)Good
8.8 µg/m³
A respiratory irritant from vehicle exhaust that can trigger inflammation in sensitive airways.
Sulfur Dioxide (SO2)Good
1.8 µg/m³
Even brief exposure can tighten airways, especially for people with asthma.
Carbon Monoxide (CO)Good
127.8 µg/m³
High levels reduce oxygen delivery in the body, compounding breathing difficulty on high-pollen days.

Weather in Colusa Today

🌤️
Weather
85°F
Sunny
Humidity
26%
Wind
10 mph S
Feels Like
83°F
Pressure
1010 mb

Frequently Asked Questions

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