Weather Alerts For Saint Charles, CO

Pollen Index: 8 Pollen Level: medium-high Predominant Pollen: Grass, Chenopods and Oak. The pollen levels for Sunday will be falling in the moderate range. This change results in part from rising humidity, weakening winds and expected precipitation in the evening which tends to wash pollen out of the air. This will improve your outlook if you have allergies and enjoy the out of doors.