This is the 14314th most frequent Turkish word.
olacakmış
"Olacakmış" means "it was said/reported/supposed to happen" or "it supposedly will happen."
Here, 'olacakmış' conveys hearsay or reported speech; the speaker indicates they're relaying information about the weather they heard from another source. 'Olacak' implies future tense, combined with '-mış' for conjecture or indirect information.
Yarın kar yağacakmış.
It is said that it will snow tomorrow.
In this sentence, 'olacakmış' represents a future event reported by someone else. The suffix '-acak' indicates future tense, while '-mış' adds the sense of hearsay or secondhand knowledge.
Yeni mağaza çok büyük olacakmış.
The new store is said to be very large.
The term 'olacakmış' here communicates information about activities during a holiday as heard or reported. It combines future tense with indirect speech, implying the speaker isn't the source of this information but is relaying it.