What's the weather like? It's ....
It's warm.
What's the weather like? It's ....
It's foggy.
What's the weather like? It's ....
It's icy.
What's the weather like? It's ....
It's a lovely day.
What's the weather like? It's ....
It's chilly/cold.
What's the weather like? It's .....
It's raining cats and dogs.
What's the weather like? It's ....
It's windy.
What's the weather like? It's ....
It's frosty.
What's the weather like? It's ....
It's hailing.
What's the weather like? It's ....
It's freezing.
What's the weather like? There's ....
There's a rainbow.
What's the weather like? It's ....
It's stormy.
What's the weather like? It's ....
It's raining/rainy/pouring down.
What's the weather like? It's ....
It's drizzling.