Why do we have Weathermen who almost always get the weather wrong?

Question

I know sometimes they get it right, but most of the time, they're wrong or half-wrong.

My dad said that only god knows what the weather is, so why have people here who mostly get it wrong?

Answer 1

Usually because weather men say the weather for a BROAD area, therefore if you live in a valley and they say "it will be 90 degrees in the valleys with some rain later on" but in reality its 100 degrees with no rain its because they just average all the temps and chances of rain for EVERY valley in the area not just yours.

Answer 2

Your dad is right ...  some schooling helped but most often like the rest of humanity it is on their guess work some science  and their judgement or laziness in not checking withe locals who've been reading the skies.  Ego also gets in the way... at least like politicians they get paid whether they're telling the truth or not...