Pollen Alerts For Romeoville, IL

Pollen Index: 8 Pollen Level: medium-high Predominant Pollen: Elm, Cedar/Juniper and Poplar/Aspen/Cottonwood. The quantity of pollen grains in the air for Friday will be falling into the very low range. This lowering of pollen concentrations is a result of falling temperatures, rising humidity and heavy rains in the morning which tend to wash pollen out of the air.