Dreams dictionary: Thermometer
Dreams dictionary: Interpretation 1
To see or read a thermometer in your dream represents your emotions, whether you are frigid, emotionally cold, warm, or hot. It also symbolizes your reaction to a situation or relationship.
Dreams dictionary: Miller Dream Interpretation
To dream of looking at a thermometer, denotes unsatisfactory business, and disagreements in the home. To see a broken one, foreshadows illness. If the mercury seems to be falling, your affairs will assume a distressing shape. If it is rising, you will be able to throw off bad conditions in your business.