Adi wrote:TreatRothschild wrote:You need a third choice:
Why is it raining out?
The other two just sound wrong to me.
Actually you need a fourth. Modern English prizes brevity and conciseness. It should be "How come it is raining?" since it never rains "in".
My pet peeve is "The reason is because." It's redundant. "The reason is <insert reason>" or "It is because <insert reason>". You don't need both.
/me cracks his neck and says a bit preciously "Glad we got that sorted out."
Unless you are in one of those giant, enclosed spaces with their own weather systems. Then, it is quite possible for it to rain "in", isn't it?