Pollen

Many people are allergic to pollen, and pollen can be an asthma trigger. On high pollen days, stay indoors with the windows closed. Using your air conditioner may help to filter outside air coming into the home.

Source: EPA

Illinois: Belvidere, Byron, Cherry Valley, Dakota, Durrand, Freeport, Lake Carroll, Lanark, Lena, Loves Park, Machesney Park, Mount Carroll, Orangeville, Pecatonica, Ridott, Rock City, Rockford, Rockton, Roscoe, Shannon, Winnebago.............................. Wisconsin: Belleville, Beloit, Brooklyn, Cambridge, Cottage Grove, Cross Plains, Deerfield, DeForest, Fitchburg, Lodi, Madison, McFarland, Middleton, Monona, Mount Horeb, New Glarus, Oregon, Stoughton, Sun Prairie, Verona, Waunakee, Windsor.