Weather is a factor in good images

Clouds on a very cloudy day act as a filter and allow photographs to be taken in midday. Normally the bright sun would prevent these photos.
Photographs taken in the rain or just after a rain have a different look.
Photos of lightning add a different view to familiar landscapes.
Falling snow can provide a different prospective to an image.
Weather is a factor in can we get to the location to take the image.
What do I need to take to protect my camera? From the cold? Rain? Snow?
Is it going to be windy when I want to photograph the flowers?
What kind of coat do I need to wear?