Meaning of いい天気 in Japanese

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Definition of いい天気

よいてんき(yoitenki) · いいてんき(iitenki) 【良い天気 ·よい天気 ·いい天気】

It was such a fine day that we decided to have a picnic.

It's too sunny to stay inside.

その日ひはいい天気てんきだった。

We had fine weather on that day.

It's a pity for you to have to stay indoors in this weather.

いい天気てんきですね。

It is a nice day, isn't it?

いい天気てんきになりそうだ。

It looks as if it's going to be a nice day.

いい天気てんきだね。泳ぎに行くのはどう？

A nice day, isn't it? How about going for a swim?

いい天気てんきだなあ。

Isn't it a lovely day!

It being fine, we went hiking yesterday.

いい天気てんきだから窓まどをあけてあけるもいいですか。

Since the weather is so good, can I open a window?