[guide42]

Same. You can always tell how is going to be the weather by yourself. Depending on how much time have you lived in the same place you can predict the weather for the day when you get up or, if you are a completely stranger to the environment, at least half an hour before.

[jameshart]

Outside my house right now it’s a cold, still evening with a high overcast. My expectation based on my years of experience living here and having seen these conditions before would be that it would likely clear out overnight, freeze hard, and be a beautiful day tomorrow.

In fact, though, a massive bomb cyclone is forming a few hundred miles away and it’s likely to dump over a foot of snow on us in the next 24 hours, accompanied by 50mph winds.

Weather forecasts are, not surprisingly, actually useful.

[michaelsalim]

While this is true in many places, i believe it is also quite untrue in many more. For example where I live, it was snowing last week. Quite cold but you can't tell csuse the snow already disappeared by the morning. And then suddenly it was sunny a few days after. Today, it was as sunny as the past few days, but the temperature was quite warm. Couldn't tell just by looking outside.