Final answer:
If the temperature/dew point spread is small and the temperature is 62F, foggy weather is most likely to develop.
Step-by-step explanation:
The temperature/dew point spread refers to the difference between the temperature and the dew point. A small temperature/dew point spread indicates a high moisture content in the air. In this case, if the temperature is 62F and the temperature/dew point spread is small, it is most likely that foggy weather will develop. The moisture in the air will condense and form fog due to the high humidity.