Describes a mood; gloomy skies might reflect or predict a somber occasion or feeling. The overcast skies seemed to mirror her melancholy mood.
Pro Tip 2/3
Weather Forecast
Often used in weather reports to describe potential conditions for the day. Tomorrow's forecast is overcast with a chance of showers.
Pro Tip 3/3
Not Always Rain
Overcast skies do not necessarily mean it will rain, just that the sky is covered with clouds. Despite the overcast morning, we didn't need our umbrellas.