Tree Pollen Levels Spike in Baltimore

Meteorologist warns of high tree pollen counts through early May

Mar. 29, 2026 at 10:07pm

Meteorologist Dylan Robichaud reports that tree pollen levels are currently high in Baltimore, with oak, maple, birch, and pine trees producing significant amounts of irritating pollen. The peak tree pollen season typically runs from late March through early May, while grass pollen will become the main issue in the coming months, followed by weed pollen in late summer.

Why it matters

Elevated pollen counts can cause significant discomfort for allergy sufferers in the Baltimore area, leading to symptoms like sneezing, itchy eyes, and difficulty breathing. Understanding seasonal pollen patterns helps residents prepare and manage their allergies.

The details

According to Robichaud, the primary trees contributing to the high pollen levels in Baltimore right now are oak, maple, birch, and pine. Oak trees usually produce the most abundant and irritating pollen in the region. Grass pollen will become the main concern from late May through July, peaking in June, while weed pollen, especially from ragweed, will be the biggest issue from late August through October, typically peaking in early to mid-September.

  • Tree pollen levels are currently high in Baltimore.
  • The tree pollen season typically runs from late March through early May, with peak levels often occurring in early to mid-April.
  • Grass pollen will become the main issue from late May through July, peaking in June.
  • Weed pollen, especially from ragweed, will be the biggest concern from late August through October, typically peaking in early to mid-September.

The players

Dylan Robichaud

A meteorologist who reported on the current high tree pollen levels in Baltimore.

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The takeaway

With the arrival of spring, Baltimore residents should be prepared to manage their seasonal allergies, as tree pollen levels are currently high and will remain a concern through early May. Monitoring pollen forecasts and taking appropriate precautions can help allergy sufferers minimize their symptoms during this time of year.