Chicago winters can be brilliantly transparent after a dry cold front, while lake-effect cloud frustrates spring and fall. Light pollution pushes dark-sky trips toward rural Illinois and Wisconsin.
Summer haze and humidity often mute the Milky Way even on “clear” forecasts.
United States · Great Lakes · ~41.9°N
Check the live Tonight score, best clear window, and next ISS pass on this page, then open a tool with coordinates prefilled.
Learn: Is tonight good for stargazing? · How to see the Milky Way