Janesville, CA Pollen Count Today

Live pollen forecast and air quality for Janesville, California

📍 Janesville, CAToday · May 31
4/10
Breathability™ Score
Mixed conditions - sensitive groups may want extra precautions.
🌳Tree Pollen
High
🌱Grass Pollen
Very High
🌿Weed Pollen
None
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Today's Pollen Levels in Janesville

Grass pollen and Tree pollen are both elevated today in Janesville, which is driving the Breathability™ Score down. People sensitive to multiple pollen types may notice stronger symptoms. With a Breathability™ Score of 4, conditions are mixed and may vary through the day.

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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
May 31
Overall: High
Tree: Moderate
Grass: High
Weed: None
Wind: 7 mph
Rain: 0%
Humidity: 38%
Mon
Jun 1
Overall: Very High
Tree: Moderate
Grass: Very High
Weed: None
Wind: 16 mph (may spread pollen)
Rain: 0%
Humidity: 33%
Tue
Jun 2
Overall: Very High
Tree: Moderate
Grass: Very High
Weed: None
Wind: 16 mph (may spread pollen)
Rain: 0%
Humidity: 29%
Wed
Jun 3
Overall: Very High
Tree: Moderate
Grass: Very High
Weed: None
Wind: 17 mph (may spread pollen)
Rain: 0%
Humidity: 32%
Thu
Jun 4
Overall: Very High
Tree: Moderate
Grass: Very High
Weed: None
Wind: 6 mph
Rain: 0%
Humidity: 43%

Tree Pollen in Janesville Today

Tree pollen in Janesville is High today, reaching 98.77 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

Birch98.77 grains/m³
Oak11.91 grains/m³
Alder0 grains/m³
Hazel0 grains/m³

Grass Pollen in Janesville Today

Grass pollen in Janesville is Very High today, reaching 173.58 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

Grass173.58 grains/m³

Weed Pollen in Janesville Today

Weed pollen in Janesville 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 Janesville Today

🌬️
Air Quality
Good
Good

Air Pollutant Breakdown

PM2.5Good
3 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
5 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
113 µg/m³
Elevated levels irritate airways and can worsen asthma symptoms.
Nitrogen Dioxide (NO2)Good
0.9 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
112.8 µg/m³
High levels reduce oxygen delivery in the body, compounding breathing difficulty on high-pollen days.

Weather in Janesville Today

🌤️
Weather
73°F
Sunny
Humidity
22%
Wind
5 mph NNE
Feels Like
73°F
Pressure
1012 mb

Frequently Asked Questions

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