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The Worst US Cities for Fall Allergies in 2026: Do You Live in One?

Driven by warming autumn temperatures, delayed first frosts, and surging ragweed pollen counts, the 2026 Asthma and Allergy Foundation of America (AAFA) Allergy Capitals report reveals a dramatic West

7 hours ago

6 Min Read16 Slides
  1. Close-up of Common Ragweed (Ambrosia artemisiifolia) in bloom in autumn.
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Driven by warming autumn temperatures, delayed first frosts, and surging ragweed pollen counts, the 2026 Asthma and Allergy Foundation of America (AAFA) Allergy Capitals report reveals a dramatic Western shift among the 15 worst US cities for seasonal allergies.

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©Wikimedia / Senior Airman Benjamin Stratton

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