Less then or equal to Else IF Java stuck

This program enters in a temperature and based on the temperature a message is outputted. My program is getting stuck tempOutside <= 50 message.. When I enter -10 the output is "Time to turn on the heat". I cannot use && as this is an assignment questions and we have not used this concept.

    if (tempOutside > 50)
        System.out.println("Enjoy the weather");
    else if (tempOutside <= 50)
        System.out.println("Time to turn on the heat");
    else if (tempOutside <= 30)
        System.out.println("Check the gas in you car before leaving");
    else if (tempOutside <= -10)
        System.out.println("BUNDLE UP it's \"COLD\" outside ");
    else

  1) if-else must be in numerical order (hi to low)
  2) Default must be coded
  3) Repeat the code, but reverse the order(low to hi)