Today is a great day

When i weaked woke up in this morning，I found the whether weather become became cooler than yesterday。 
Tomorrow I will have my sac test1 exam. I am so worried because this is my second time to have this exam. If i can‘t past then I can‘t graduate. The examing place is so far from me that i have to weak wake up early and take 2 hours bus to go get there. Maybe I have to get up in  at 5 am。。
well，so Good luck to me

Weaked is not a word in english.

Woke is the past tense of the verb ' to wake up'

Whether and weather sound alike, but mean different things. Weather means the climate. Whether relates to making a choice. But nice try!

Became is the past tense of become.

Examing is not a word in english.

Saying something is far from you is more natural than saying something is far to you. 

Weak means you are not strong ( you are strong! )

Woke is the past tense of the verb ' to wake up' 

Get is more appropriate than go in this case.

When talking about time, we us at. not in. 

The rest are grammar fixes. 

Good luck on your exam!