Describing the weather:
* The sky was overcast, making it difficult to see the stars.
* The day was overcast and drizzly.
* We decided to stay inside because the weather was overcast and gloomy.
Figurative language:
* Her mood was overcast with sadness.
* The future looked overcast with uncertainty.
* His face was overcast with anger.
Other examples:
* The room was overcast with smoke from the fireplace.
* The painting was overcast in a thick layer of dust.