http://www.metcheck.com/V40/UK/HOME/


Just stick in your own postcode and add the page to your favourites. It gives you a fairly reliable (not perfect by any means!) gauge of what the weather will be like in your area for the next day or so.
I use it to decide whether I can get the telescope ready or not, but it's equally good for planning UFO skywatching sessions around and is free which is nice. :P

Cheers!

While handy this isn't perfect. It said my area would be covered in fog all last night, yet I spent a couple of hours out with the telescope looking at Saturn, the Orion nebula and the moon with not a cloud in the sky!