Quite cold. It's...
It's cool
Unpleasantly cold. It's...
It's chilly
Very cold. It's...
It's freezing
-12°C. It's...
It's below zero
Pleasant and not cold. It's...
It's mild
A pleasantly high temperature. It's...
It's warm
Unpleasantly hot. It's...
It's boiling / It's scorching
Warm and wet, but not raining. It's...
It's humid.
Cold and slightly wet. It's...
It's damp
Raining lightly. It's...
It's drizzling
Raining intermittently. There...
There are showers
Raining a lot. It's...
It's pouring
Light wind. There...
There's a breeze
It isn't usually very thick, and often occurs in the mountains or near the sea. Fog, mist or smog?
Mist
It is thicker, and can be found in towns and in the country. Fog, mist or smog?
Fog
It is caused by pollution and usually occurs in big cities. Fog, mist or smog?
Smog
