In recent years, there have been more wildfires because of dry, hot weather, and changeable weather patterns because of global warming.

近年来，由于干旱、炎热的天气，以及全球变暖导致的多变天气模式，导致了更多的森林火灾。

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The forecast is for changeable weather.

未来一段时间天气多变。

《柯林斯英汉双解大词典》

In England, the changeable weather is a topic which is much talked about.

在英国的变化无常的天气是一个谈论得很多的话题。

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But until Africa's economies become more diversified, they will be over-exposed to changeable weather, fickle aid flows and volatile commodity prices.

ECONOMIST: African financial markets

But even in summer, at an altitude of more than 3, 000 metres, the winds are fierce and frequent, the weather is changeable, and the nights are bitterly cold.

BBC: Nomadic Kyrgyzstan

As elsewhere on the coasts of the southern Mediterranean, winter weather can be changeable from day to day with cool, cloudy, rainy spells interrupting the generally warm, sunny, and settled weather.

BBC: Libya