When we use numbers to talk about temperature, the numbers are always combined with the unit Fahrenheit or Centigrade (Celsius). If the temperature is above zero degrees it is pronounced simply as the number. If the temperature is below zero degrees the word ‘minus’ is pronounced before the number.
We use the symbol ⁰ followed by the temperature scale to express temperature. So ⁰C expresses ‘degrees Celsius’ and ⁰F expresses ‘degrees Fahrenheit’.
70⁰ F seventy degrees Fahrenheit - "comfortable" "nice"