Chicago Weather In June
Chicago Weather In June is normally warm, sometimes hot, and rarely cold. The normal range is between 60 for a low and 80 for a high, with record lows down in the low 40s and record highs near or exceeding 100. So pay strict attention to the weather forecast, but if you are making long range plans you can bet that the weather will probably be quite nice in Chicago in June.
As for rain, it is quite likely that you will see rain if you are in Chicago for a few days. The rain usually isn't excessive but thunderstorms are possible.