Indianapolis, IN Pollen Count Today

Live pollen forecast and air quality for Indianapolis, Indiana

šŸ“ Indianapolis, INToday Ā· Sep 20
8/10
Breathabilityā„¢ Score
Excellent breathing conditions for most plans today.
šŸŒ³Tree Pollen
None
šŸŒ±Grass Pollen
None
šŸŒæWeed Pollen
Low
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Today's Pollen Levels in Indianapolis

Weed pollen is slightly elevated at Low levels in Indianapolis. Overall conditions are manageable for most people. With a Breathabilityā„¢ Score of 8, breathing conditions look good for most people.

How Today's Pollen May Affect You

Mild allergy sufferers
Most plans can stay the same today. Weed pollen is elevated and air quality is Good, so a quick rinse after time outside may help.
Moderate allergy sufferers
Conditions look manageable with routine precautions. Keep windows closed during peak pollen periods and shower after outdoor time.
Severe allergy sufferers
Even on a better day, keep your usual high-protection routine and avoid long exposure when pollen spikes.

5-Day Pollen Forecast

Pollen in Indianapolis peaks Tuesday at High, driven by weed pollen.

Today
Sep 20
Overall: Low
Tree: None
Grass: None
Weed: Low
Wind: 13 mph
Rain: 80% (may wash pollen out)
Humidity: 75%
Mon
Sep 21
Overall: Moderate
Tree: None
Grass: None
Weed: Moderate
Wind: 12 mph
Rain: 33%
Humidity: 78%
Tue
Sep 22
Overall: High
Tree: None
Grass: None
Weed: High
Wind: 11 mph
Rain: 24%
Humidity: 71%
Wed
Sep 23
Overall: Moderate
Tree: None
Grass: None
Weed: Moderate
Wind: 10 mph
Rain: 31%
Humidity: 75%
Thu
Sep 24
Overall: High
Tree: None
Grass: None
Weed: High
Wind: 9 mph
Rain: 25%
Humidity: 79%

Tree Pollen in Indianapolis Today

Tree pollen in Indianapolis 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/mĀ³
Birch0 grains/mĀ³
Hazel0 grains/mĀ³
Oak0 grains/mĀ³

Grass Pollen in Indianapolis Today

Grass pollen in Indianapolis 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/mĀ³

Weed Pollen in Indianapolis Today

Weed pollen in Indianapolis is Low today, reaching 3.91 grains/mĀ³. 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

Ragweed3.91 grains/mĀ³
Mugwort1.07 grains/mĀ³

Air Quality in Indianapolis Today

šŸŒ¬ļø
Air Quality
Good
Good

Air Pollutant Breakdown

PM2.5Good
11 Āµg/mĀ³
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 Āµg/mĀ³
Larger particles up to 10 micrometers, like dust or pollen. They can irritate your airways and worsen allergies or asthma.
Ozone (O3)Good
72 Āµg/mĀ³
Elevated levels irritate airways and can worsen asthma symptoms.
Nitrogen Dioxide (NO2)Good
9.9 Āµg/mĀ³
A respiratory irritant from vehicle exhaust that can trigger inflammation in sensitive airways.
Sulfur Dioxide (SO2)Good
2.4 Āµg/mĀ³
Even brief exposure can tighten airways, especially for people with asthma.
Carbon Monoxide (CO)Good
157 Āµg/mĀ³
High levels reduce oxygen delivery in the body, compounding breathing difficulty on high-pollen days.
See the full Indianapolis air quality report ā†’

Weather in Indianapolis Today

šŸŒ§ļø
Weather
74Ā°F
Moderate or heavy rain shower
Humidity
91%
Wind
6 mph SE
Feels Like
78Ā°F
Pressure
1012 mb

Frequently Asked Questions

When pollen keeps winning, see an allergist

Pollen shifts week to week in Indianapolis. 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 Indiana ā†’

Get free daily pollen alerts

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

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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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