How to say the weather in English?

. Although it is the word, it is not used in many cases.

For example:

obviously

it is

leave

arrive

turn

It's colder

Obviously, it's getting cold.

it is

a

very good

sky

for

a

Travel.

Today is a good day to travel.

Well,

it is

many

Colder

here

compare

it

be

exist

Go home.

Oh, the weather here is colder than my hometown.