Parts of the day
Hi, there

Could you help me?

Do you say "early/late in the morning/afternoon" or "(the) early/late morning/afternoon"? What about "late at night" and "late in the night"? And do you use "the" before "early morning/afternoon""

For example: Would you say
"There is rain expected late in the morning/(the) late morning until late in the afternoon/(the)late afternoon. The rain is expected to let up late at night/late in the night"
"There is snow expected early in the evening/early evening into (the) early overnight"

Please, which ones would you use?

Thank you very much!

Question

Parts of the day
Hi, there

Could you help me?

Do you say "early/late in the morning/afternoon" or "(the) early/late morning/afternoon"? What about "late at night" and "late in the night"? And do you use "the" before "early  morning/afternoon""

For example: Would you say
"There is rain expected late in the morning/(the) late morning until late in the afternoon/(the)late afternoon. The rain is expected to let up late at night/late in the night"
"There is snow expected early in the evening/early evening into (the) early overnight"

Please, which ones would you use?

Thank you very much!

Answer

I'd write,
"Rain is expected late (this) morning until late (this) afternoon. " - if I am talking about today 
"Rain is expected late in the morning until late in the afternoon. " - if I say I am talking about tomorrow

The rain is expected to let up late tonight - if it is today
The rain is expected to let up late at night - if I am talking about tomorrow

"Snow is expected from early evening until early tonight" = talking about today
"Snow is expected from early in the evening until early at night" = talking about today

(overnight is not used here - it is an adjective. You can say something like "we are expecting some overnight snow"