I usually check each of these sites:
(This one is used for long range planning.)
(Google search this exactly and include your location. It will help you determine if the clouds will make it too hard to see the stars.) This link is set for Morton Grove IL. When the link opens, click on the square at the time you wish to observe. another window opens to show you the cloud conditions predicted.
(A great site to check for manmade satellites orbiting above your head and the ISS.) (Needs a log in.)