Boise, Idaho, is preparing for an early and extended allergy season, primarily due to unusually warm weather patterns. The Asthma and Allergy Foundation of America has identified Boise as one of the most challenging cities in the U.S. for allergy sufferers this year. The early onset of warm temperatures has triggered an early pollen season, which experts predict will last longer than usual. Boise's high pollen levels, combined with a limited number of allergy specialists, contribute significantly to this ranking. Pollen, a common allergen, exacerbates conditions like allergic asthma and rhinitis, impacting a large portion of the population.