He'd either miscalculated the time of day, or it was completely overcast.

Still, completely overcast skies and plenty of threatening dark clouds made for a pre-mature dusk.

Midway through the afternoon the sky became completely overcast, making everything look even bleaker and more foreboding.

By late afternoon of the 22nd the sky became completely overcast with low clouds of bad weather which predominated throughout the remainder of the storm.

The sky was completely overcast.

Even on a completely overcast day, the sun's light and heat still reach us.

Vikings use polarization Sunstone to allow navigation of their ships by locate the Sun even in a completely overcast sky.

By the time they reached the roof the sky was completely overcast, and the clouds to the west were black.

Mousa Broch is well known among birders for its breeding European storm-petrels, which are best seen after dark on partly or on completely overcast summer nights.

The weather is completely overcast.