Sometimes we are informed about the weather. This can happen through the news channel, someone telling us, or maybe our own intuition. There are certain times of year where it rains a lot.
If we would like to mention about this topic, we can use some expressions such as:
1) I heard it is going to rain tomorrow.
2) Supposedly it is going to rain tomorrow.
3) I was told it is going to rain tomorrow.
[天気](https://eikaiwa.dmm.com/uknow/questions/33921/)について情報が提供される時があります。
ニュース、誰かが教えてくれた、あるいは自分の直感で知ることが可能です。一年の間には、雨が沢山降る[時期](https://eikaiwa.dmm.com/uknow/questions/43896/)があります。
この話題について言いたければ、下記のような表現が使えます。
1) I heard it is going to rain tomorrow.
明日は、雨になるらしいです。
2) Supposedly it is going to rain tomorrow.
明日は、[雨が降る](https://eikaiwa.dmm.com/uknow/questions/44257/)でしょう。
3) I was told it is going to rain tomorrow.
明日は、雨になると言われました。
Ootchanさん
ご質問どうもありがとうございます。
様々な表現があると思いますが、いくつか自然な表現を紹介します。
１．It seems it's going to be rainy tomorrow.
２．It seems it's gonna be raining tomorrow.
３．It seems tomorrow will be a rainy day.
P.S. gonnaはgoing to の略です。
お好みに合わせて使い分けてみてください。
ご参考にしていただければ幸いです。
If you heard something it means to 'hear' it or someone has told you something is going to happen
'to be rainy' means that the weather is going to be raining
何かを”Heard"したということは、人から聞いた、という意味です。”I heard it's going to rain tomorrow"（明日雨が降るって聞いたよ。）
”To be rainy"は、「雨が降る」という意味です。
All three of these sentences are statements that indicate you know it will rain tomorrow. If you say any of these to an English speaker they will understand your intention is to share this information.
In sentence #2 I use the word "wet" to indicate rain. When a day is described as being "wet" it implies that it will be raining.
Grab your umbrellas!I heard it's going to rain cats and dogs.
The two sentences you see provided above are terrific ways to express to your listener that you heard it is going to rain. In the second sentence you will see the term rain cats and dogs. This means to rain, sometimes heavily. This term is appropriate for informal settings, like talking with close friends or family members.
上記二つの例文は、「雨になると聞いた」と伝える素晴らしい言い方です。
二つ目の例文には、"rain cats and dogs"という表現が使われています。これは「（激しく）雨が降る」という意味です。この表現は家族や親しい友人と話すときなどインフォーマルな場面に適しています。
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