Light required in Germination...

Hey, just a quick question..
My Seed just sprouted and it is kind of bad timing for me. I cant get it outside for a couple days so its gonna have to stay in. I was wondering how much light a little sprout needs, becuase i wont be able to provide very much. It has been thunder storming here for the past week, so its not very bright out anyways. I have it sitting on the floor near a window. I am hoping this will be enough until the weather clears up enough to put it outside. Thanks for any help!