If you are very hot or very cold in your dream, you first of all need to consider whether your bedroom is too hot or too cold and your unconscious has simply incorporated your physical reaction in your dreams.
If this is not the case, the dream may be pointing to your frame of mind. Extreme heat could indicate unpleasant or difficult circumstances, or a person you consider hot or sexy.
Feeling hot can also warn you of impending danger, as in ’finding your self in a hot spot’ or of burning passions, such as lust or anger. Your unconscious may be warning you to remove yourself from a source of potential danger.
If the atmosphere is humid in your dream this indicates that you feel as if your waking situation is oppressive. If, however you are aware of feeling pleasantly warm, this is a positive sign indicating that you are feeling content in your waking life; if you are shivering with the cold, the opposite is true. In waking life you may feel emotionally cold or perhaps someone is being cold to you. Alternatively, do you feel as if you have to act ruthlessly, as in ’cold- bloodedly’, or is it fear that is making your blood run cold? If you feel uncharacteristically hot when it is cold outside, this suggests your warmth and optimism is overcoming the coldness and hostility in which you find yourself; but if you feel cold when it is warm outside, this suggests you are cutting your self off from emotional interaction in some way.