It was a warm and sunny day.
It was a warm and sunny day. We went out for a walk in the park. However, the weather started to change in the afternoon and by six o'clock it was raining hard. / Был теплый солнечный день. Мы вышли погулять в парке. Однако днем погода начала меняться, и к шести часам пошел сильный дождь.