Weather Alerts For Mackinaw City, MI

Pollen Index: 9.5 Pollen Level: medium-high Predominant Pollen: Birch, Ash and Cedar/Juniper. Pollen concentrations for Saturday will be falling in the moderate range. This relief in pollen levels is caused in part by falling temperatures, rising humidity, and heavy rains in the morning and evening which tend to wash pollen out of the air. The lower pollen levels are significant and should help allergy sufferers to cope tomorrow.