Pollen Alerts For Big Bend National Park, TX

Pollen Index: 10.6 Pollen Level: high Predominant Pollen: Oak, Hackberry and Mulberry. Concentration of pollen grains in the air for Thursday will be falling but will remain in the very high range. Since the weather has a major influence on pollen dispersal, this decrease is due in part to falling temperatures, rising humidity, and expected precipitation in the morning and evening which tends to wash pollen out of the air.