Weather Alerts For Ames, IA

Pollen Index: 10.4 Pollen Level: high Predominant Pollen: Maple, Birch and Poplar/Aspen/Cottonwood. The amount of pollen in the air for Sunday will be rising and extend even further into the extremely high range. Since the weather has a major influence on pollen dispersal, this increase is due in part to higher temperatures and windy conditions.