Pollen count and allergy info for Herndon, 20170, Virginia, United States - The Weather Channel | weather.com

Pollen Breakdown

Do you know which kinds of pollen aggravate your symptoms? Here is the 3 day outlook for the worst offenders.

Tree Pollen

• Tonight: None
• Tomorrow: None
• Sunday: None

Grass Pollen

• Tonight: Moderate
• Tomorrow: Moderate
• Sunday: None

Ragweed Pollen

• Tonight: None
• Tomorrow: None
• Sunday: None

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