Temperatures in the north will be 8C at their highest, with the south-west enjoying slightly higher temperatures of 12C. Frost and icy patches will develop also.
But that won't last long with temperatures dropping tomorrow to below 6C in the south and even lower in other areas of the country.
'Most of us will see snow and rain, and there's going to be a lot of wind.
Saturday won't be much different - although there will be some dry intervals at stages.
Heavy rain is to first hit parts of the country on Saturday afternoon, before wintry weather affects the majority of Scotland at various times over the weekend.
Showers and blustery weather is forecast for the north-west, where the highest temperatures us expected to be around 5C, with the south-west's at about 7C.
Temperatures will rise to 4 degrees during the day and drop to -3 degrees during the night.
Sunday: Bright spells and snow showers, most frequent in northwest.
"Ice will also be a hazard overnight into Sunday morning and then is expected to return in the evening". Frost and icy patches will develop also.
Temperatures will peak at around 3°C, before freezing in the early evening.
Temperatures Sunday and Monday are expected to be colder than normal but will pick up on Tuesday and Wednesday as a new weather system comes in from the Atlantic.
Larger amounts of snow are expected on higher ground, especially in Ulster and Connacht.
Tuesday will be cold with good sunny spells and some scattered wintry showers in the west and north for a time.