"Ahora mismo no está lloviendo."
Translation:Right now it's not raining.
Ahorita will mean "right now" with no delay in some places, and in others it means "some vague time in the not too distant future". I have found that ahora mismo always means "now" to those I have spoken with. I remember responding to people who answered a question with ahorita with "ahora mismo o ahora mas tarde". I would usually getba chuckle and then they repond with one of the two.
Yes, some people are really time challenged, and in Ecuador, that is putting it mildly...The joke here is that mañana means not today..