英文回答：
Weather Observation Diary。
Day 1。
Today, the sky was a clear, bright blue with only a few puffy white clouds dotting the horizon. The sun was shining brightly, and there was a slight breeze blowing through the trees. The temperature was around 70 degrees Fahrenheit (21 degrees Celsius), and the humidity was low. It was a perfect day to be outside and enjoy the fresh air.
Observations:
Clear blue sky。
Few puffy white clouds。
Bright sun。
Slight breeze。
Temperature: 70 degrees Fahrenheit (21 degrees Celsius)。
Low humidity。
Day 2。
Today, the weather was not as nice as yesterday. The sky was overcast with thick gray clouds. It was raining lightly, and the wind was gusting. The temperature had dropped to 55 degrees Fahrenheit (13 degrees Celsius), and the humidity was high. It was a good day to stay indoors and curl up with a good book.
Observations:
Overcast gray sky。
Light rain。
Gusting wind。
Temperature: 55 degrees Fahrenheit (13 degrees Celsius)。
High humidity。
Day 3。
Today, the weather was a mix of sun and clouds. The sky was partly cloudy, and the sun was peeking out from behind the clouds. There was a light breeze blowing, and the temperature was around 60 degrees Fahrenheit (16 degrees Celsius). The humidity was moderate. It was a nice day to go for a walk or sit outside and enjoy the sunshine.
Observations:
Partly cloudy sky。
Light breeze。
Temperature: 60 degrees Fahrenheit (16 degrees Celsius)。
Moderate humidity。
Day 4。
Today, the weather was stormy. The sky was dark and cloudy, and there was heavy rain and thunder. The wind was blowing strong, and the trees were swaying back and forth. The temperature had dropped to 45 degrees Fahrenheit (7 degrees Celsius), and the humidity was high. It was a good day to stay inside and watch a movie.
Observations:
Dark and cloudy sky。
Heavy rain and thunder。
Strong wind。
Temperature: 45 degrees Fahrenheit (7 degrees Celsius)。
High humidity。
Day 5。
Today, the weather was beautiful again. The sky was clear and blue, and the sun was shining brightly. There was a light breeze blowing, and the temperature was around 75 degrees Fahrenheit (24 degrees Celsius). The humidity was low. It was a perfect day to go for a swim or enjoy some time outdoors.
Observations:
Clear blue sky。
Bright sun。
Light breeze。
Temperature: 75 degrees Fahrenheit (24 degrees Celsius)。
Low humidity。
中文回答：
天气观察日记。
第1天。
今天，天空晴朗，碧空如洗，只有几朵蓬松的白云点缀在天际。太阳高照，微风轻拂树梢。气温约为70华氏度（21摄氏度），湿度较低。这真是个适合外出享受新鲜空气的完美日子。
观察：
天朗气清。
白云朵朵。
阳光普照。
微风轻拂。
气温，70华氏度（21摄氏度）。
湿度低。
第2天。
今天，天气不如昨天好。天空阴云密布，乌云滚滚。小雨淅淅沥沥，风呼呼地刮着。气温降至55华氏度（13摄氏度），湿度较高。这正是窝在家里读一本好书的好日子。
观察：
阴云密布。
小雨绵绵。
风势强劲。
气温，55华氏度（13摄氏度）。
湿度高。
第3天。
今天，天气时而晴朗，时而多云。天空半明半暗，太阳时隐时现。微风轻拂，气温约为60华氏度（16摄氏度）。湿度适中。这正是散步或坐户外享受阳光的好日子。
观察：
阴晴不定。
微风习习。
气温，60华氏度（16摄氏度）。
湿度适中。
第4天。
今天，天气突变，一场暴风雨不期而至。天空昏暗阴沉，电闪雷鸣，大雨倾盆而下。狂风呼啸，树木在风中左右摇摆。气温降至45华氏度（7摄氏度），湿度较高。这正是窝在家里看场电影的好日子。
观察：
乌云密布。
雷雨交加。
狂风大作。
气温，45华氏度（7摄氏度）。
湿度高。
第5天。
今天，天气又晴朗了起来。天空碧空如洗，阳光普照。微风轻拂，气温约为75华氏度（24摄氏度）。湿度较低。这真是个适合游泳或享受户外时光的完美日子。
观察：
天朗气清。
阳光普照。
微风拂面。
气温，75华氏度（24摄氏度）。
湿度低。
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