Weather Alerts For Rio Vista, TX

Pollen Index: 8.9 Pollen Level: medium-high Predominant Pollen: Hickory/Pecan, Oak and Sycamore. The quantity of pollen grains in the air for Friday will be falling but will remain in the high range. This relief in pollen levels is caused in part by rising humidity, relatively calmer winds and expected precipitation in the morning and evening which tends to wash pollen out of the air.