When it comes to the weatehr its best to just take it as it comes. I do check the weather, for example if heavy rain is forcast for the afternoon it would be a good idea to get out early and get cracking but like you say its not worth worrying about until its upon us.
It was supposed to snow today, then it was supposed to rain this aft, weve head neither.
Very rarely do we get weather bad enough all day day long to stop us doing anything, just play it by ear, it usually works out alright.