Weather Alerts For Glen Rock, PA

Pollen Index: 9.1 Pollen Level: medium-high Predominant Pollen: Ragweed, Nettle and Chenopods. The pollen levels for Thursday will be falling in the moderate range. Since the weather has a major influence on pollen dispersal, this decrease is due in part to rising humidity, strong winds and heavy rains in the evening which tend to wash pollen out of the air. This will improve your outlook if you have allergies and enjoy the out of doors.