How are weather forecasts made?

We all need to know what the weather's going to be like before we leave the house.

Do we need to bring a brolly with us or slap on some sun cream? Or to work out if our weekend will be barbecues or movie marathons!

That's where forecasts come in. But how are they done? Ricky's gone to one weather mad school to find out.

If you want to get involved with BBC Weather Watchers then your teacher or your guardian can sign up by visiting BBC Weather Watchers here.