Pollen Forecast for Collinsville, Illinois

Concentration of pollen grains in the air for Saturday will be greater than today's levels in the moderate range. This results in part from higher temperatures and the lower dewpoint. If you have these allergies, tomorrow will likely be more difficult outdoors.

The amount of pollen in the air for Sunday will be falling in the moderate range. This decrease is due to lack of winds and expected precipitation in the afternoon which tends to wash pollen out of the air.