Do I need to cite someone repeatedly? I am using a quotation in my text which I am citing appropriately the first time. Do I need to cite again when using some text or, a concept, or even a word of the quotation later in the text?

For example:


  Smith (2015, p.15) states that: ‘the weather is going the be good today’.
  […]
  We do not need an umbrella today as the weather is going to be ‘good today’, so rain is not expected.


As you see, I am using punctuation, but I am not citing again. Is that appropriate?
You must cite every time you use the words or ideas of another.