The dark clouds that threatened snow were moving south, leaving behind clear sky.
For short periods it hailed, and the lowering sky appeared to threaten snow.
The evening sky had gone gray, chilled with early winter that threatened snow.
The convention would meet there despite the weather, which threatened snow.
The clouds bundled up to block the sun and threaten snow.
Outside, the sunny morning had given way to a gray and cloudy afternoon, one that threatened snow or a cold rain.
The clouds are gathering again, and it threatens more snow.
Summer days are warm with cool nights, but unpredictable mountain weather can threaten snow any month of the year.
A light rain had started to fall, with a biting wind in the air that threatened snow.
It was a cold, blustery day outside, threatening snow.