I won't go out if it (rains / is raining / is rainy) tomorrow

[hirashin]

Hello native English speakers.
1 Which would be used?
I won't go out if it (rains / is raining / is rainy) tomorrow.

2 Would all the sentences be used?
(a) The bus arrives at Tokyo Station at 10 a.m.
(b) The bus will arrive at Tokyo Station at 10 a.m.
(c) The bus is going to arrive at Tokyo Station at 10 a.m.
(d) The bus will be arriving at Tokyo Station at 10 a.m.
(e) The bus is arriving at Tokyo Station at 10 a.m.

2 Which would be used?
(a) Around 10 a.m. tomorrow, I will be reading a book.
(b) Around 10 a.m. tomorrow, I'm reading a book.
(c) Around 10 a.m. tomorrow, I'm going to be reading a book.

Hirashin

 

[mdchachi]

I think they are all possible.