BBC weather presenter Simon King
Media playback is unsupported on your device

Tim Peake Launch: Will the weather delay it?

11 December 2015 Last updated at 16:34 GMT

British astronaut Tim Peake will be blasting off to the International Space Station from Kazakhstan, in central Asia on Tuesday.

The weather can play a big part in making sure that launch goes to plan.

Newsround asked BBC weather presenter Simon King to tell us what Tim can expect on launch day.