You might want to avoid setting your smartphone down on a rock in Illinois for awhile. There is scientific evidence that recent solar flares literally electrified rocks and soil in the Land of Lincoln.
Predicting when the Northern Lights will be visible is something that even NASA hasn't completely figured out, but there is a forecast regarding 3 incoming solar flares that could mean the Aurora Borealis will not only be visible in Illinois, but maybe even be overhead this weekend. Maybe.
It would be a great idea to keep your eyes on the skies over Wisconsin this weekend as the Northern Lights may be visible due to a major solar storm from a mammoth sunspot.