明天的天气是晴朗的用英语怎么说

"Tomorrow's weather is clear" is how you would say "明天的天气是晴朗的" in English.
"Clear" is an adjective used to describe weather that is free of clouds or precipitation, and is often used to describe sunny weather.
Examples:
"I'm looking forward to tomorrow, the forecast says it's going to be clear."
(我期待明天，预报说天气将会晴朗)
"I'm glad we decided to have a picnic, the weather is clear and perfect for it."
(我很高兴我们决定野餐，天气晴朗完美)
"The clear skies make for a beautiful sunset."
(晴朗的天空使日落更美)