Pollen Alerts For Creston, IA

Pollen Index: 9.9 Pollen Level: high Predominant Pollen: Ash, Birch and Oak. The quantity of pollen grains in the air for Saturday will be falling in the moderate range. The cause for the falling pollen levels is rising humidity, weak winds and expected precipitation in the morning and evening which tends to wash pollen out of the air. Relief is in sight.