Thunderstorms and ducklings

[its raining hen]

Hi! I have 5 week old ducklings and bad weather is forecast tomorrow. They have never been in a storm. They love to be outside but they still need to be corralled into the coop every evening. Will they know to go inside when the weather gets bad?

Picture added of my cuties <3

 

[TLWR]

They don't have to go in. My ducks love bad weather and just run around in it and play in all the puddles.
Depending on the temp with your storm, I'd just peek out on them ever now and again. They look mostly feathered, so they should be fine.

 

[its raining hen]

I let them out this morning and they have yet to even care about the storm. It's like a pool party where the yard is flooding. You are right. They are fine and loooving it. Thank you for the advice.