What is a funny weather joke?

What's worse than it raining cats and dogs? Hailing taxis. Many weather jokes are puns, focus on extremes of weather, or compare aspects of weather to human characteristics.

What do snowmen eat for breakfast? Frosted flakes.

It was so cold, hitchhikers were holding up pictures of their thumbs.

What does a cloud wear under its coat? Thunderwear

What did one ocean say to the other? Nothing, it just waved.

A man found an iPhone on the ground and gave it to the local weatherman. "Sir, I think you lost this," he said. "What makes you think that?" said the weatherman. "It has twenty missed calls."