I'm not aware of any poor weather forecasting. On the whole it's pretty accurate, but it's not an exact science. Very occasionally it's plain wrong.
Is it any worse than it used to be? No.
I always use the Met Office (BBC). Weather forecasting is an important resource, so I'd rather support a (mostly) publicly-funded service.
As Michael Fish once pointed out, "If the Met Office always gets it totally wrong, just interpret their forecasts to be the exact reverse and you'll be okay!" Or something.