Weather a storm= you survive a dangerous or difficult time.

A fair-weather friend= a person who will only be your friend when things are going well for you.

Quick as lightning /a wink = be very very quick.

Come rain or shine = You’ll turn up definitely.

Snowed under = When you have so much to do that you’re having trouble doing it all.

When it rains, it pours = when one thing goes wrong, some other things will also go wrong.

A breath fresh air = a relief in the form of a person or a situation.

Have the head in the clouds = have unrealistic or impractical ideas.

A ray of sunshine = something that brings happiness to someone.

Make hay while the sun shines = to make good use of the chance to do something while it lasts.

Under a cloud = suspected of having done something wrong.

Under the weather = Not feeling well.

Tempest/Storm in a teapot = give too much importance to small problem. A small event is exaggerated out of proportion.

Save for a rainy day = Keep for bad times and be ready for the future.

Chase rainbows = Try to get something which is too difficult.