News site merkur-online said temperatures in Munich would drop significantly, hardly leaving single figures for the next few days.
It warned Bavarians that a rainy weekend and freezing temperatures on Sunday night could lead to black ice on roads on Monday morning, when gritting lorries were likely to be out for the first time this winter.
The German Weather Service (DWD) said on Friday that snowfall heights would come down to between 600 and 800 metres on Saturday night, and stay as low as 700 to 1000 metres during Sunday.
The cold weather is expected as cold air currents pulled in by a low-pressure system were due to hit Germany on Friday night.
The low pressure front will bring with it windy, rainy weather and possible storms across the country, but especially in the west, the Weather Service reported.