您的家乡天气很好可以用以下英文表达：
The weather in your hometown is very nice.
Your hometown has very good weather.
The weather in your hometown is quite pleasant.
这些表达来自日常英语的表达方式，是通过对天气的描述和评价来表示的。
以下是一些例句：
The sun is shining and the sky is blue in my hometown.
我的家乡阳光明媚，天空是蓝色的。
I love the warm weather in my hometown.
我喜欢我家乡温暖的天气。
The weather in my hometown is so mild, it's perfect for outdoor activities.
我家乡的天气如此温和，非常适合户外活动。