Baltimore, MD Pollen Count Today

Live pollen forecast and air quality for Baltimore, Maryland

šŸ“ Baltimore, MDToday Ā· Sep 20
6/10
Breathabilityā„¢ Score
Good day overall with a few allergy-aware adjustments.
šŸŒ³Tree Pollen
None
šŸŒ±Grass Pollen
Low
šŸŒæWeed Pollen
Moderate
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Today's Pollen Levels in Baltimore

Weed pollen is slightly elevated at Moderate levels in Baltimore. Overall conditions are manageable for most people. With a Breathabilityā„¢ Score of 6, conditions are mixed and may vary through the day.

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 Baltimore eases to Low by tomorrow.

Today
Sep 20
Overall: Moderate
Tree: None
Grass: Low
Weed: Moderate
Wind: 13 mph
Rain: 62% (may wash pollen out)
Humidity: 74%
Mon
Sep 21
Overall: Low
Tree: None
Grass: Low
Weed: Low
Wind: 12 mph
Rain: 87% (may wash pollen out)
Humidity: 88%
Tue
Sep 22
Overall: Low
Tree: None
Grass: Low
Weed: Low
Wind: 20 mph (may spread pollen)
Rain: 93% (may wash pollen out)
Humidity: 94%
Wed
Sep 23
Overall: Low
Tree: None
Grass: Low
Weed: Low
Wind: 19 mph (may spread pollen)
Rain: 92% (may wash pollen out)
Humidity: 91%
Thu
Sep 24
Overall: Moderate
Tree: None
Grass: Low
Weed: Moderate
Wind: 19 mph (may spread pollen)
Rain: 66% (may wash pollen out)
Humidity: 78%

Rain is likely Monday (87% chance). The hour or two right after it stops is usually the cleanest air of the day. Plan around Tuesday though. Pollen often climbs the day after rain, when plants use the moisture to release a fresh burst.

Winds could reach 20 mph Tuesday. Gusts carry pollen miles from the plant that released it, so a windy day can feel worse than the count suggests.

Tree Pollen in Baltimore Today

Tree pollen in Baltimore 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 Baltimore Today

Grass pollen in Baltimore is Low today, reaching 0.60 grains/mĀ³. 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

Grass0.60 grains/mĀ³

Weed Pollen in Baltimore Today

Weed pollen in Baltimore is Moderate today, reaching 34.15 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

Ragweed34.15 grains/mĀ³
Mugwort4.58 grains/mĀ³

Air Quality in Baltimore Today

šŸŒ¬ļø
Air Quality
Good
Good

Air Pollutant Breakdown

PM2.5Good
5 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
7 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
76 Āµg/mĀ³
Elevated levels irritate airways and can worsen asthma symptoms.
Nitrogen Dioxide (NO2)Good
5.4 Āµg/mĀ³
A respiratory irritant from vehicle exhaust that can trigger inflammation in sensitive airways.
Sulfur Dioxide (SO2)Good
1.3 Āµg/mĀ³
Even brief exposure can tighten airways, especially for people with asthma.
Carbon Monoxide (CO)Good
144 Āµg/mĀ³
High levels reduce oxygen delivery in the body, compounding breathing difficulty on high-pollen days.
See the full Baltimore air quality report ā†’

Weather in Baltimore Today

šŸŒ§ļø
Weather
71Ā°F
Patchy rain nearby
Humidity
82%
Wind
12 mph SSE
Feels Like
69Ā°F
Pressure
1017 mb

Frequently Asked Questions

When pollen keeps winning, see an allergist

Pollen shifts week to week in Baltimore. 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 Maryland ā†’

Get free daily pollen alerts

Morning alerts for Baltimore 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.

Browse all guides ā†’

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