The Met Office has issued a yellow weather warning for snow and ice at the weekend and into next week.
The alert, which warns some travel disruption is likely, covers northern Scotland and is in place over Sunday.
Another warning for snow and ice has been issued for the whole of Northern Ireland and will be active from 3am on Monday until midnight.
Some roads and railways are likely to be affected, with some icy patches on untreated roads, pavements and cycle paths.
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The Met Office said there may be some injuries from slips and falls on icy surfaces.
It issued a further warning for the northern areas of Scotland for the whole of Monday, cautioning there will be a small chance of power cuts and warning other services, such as mobile phone coverage, may be affected.
It said there was also a slight chance snow-covered roads would lead to stranded vehicles and passengers, along with delayed or cancelled rail and air travel.
The Met Office said a northerly airflow will bring cold arctic air to the UK from Sunday and into next week, causing snow showers to focus across northern areas of Scotland and Northern Ireland.
There is a chance of disruptive snow for some areas as milder Atlantic air pushes in from the southwest over the next week.
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“While the initial snow risk from Sunday onwards is looking most likely to be coastal areas in the north of the UK, including North Sea and Irish Sea coasts, there’s an ongoing likelihood of some disruptive snow through the middle to latter part of next week,” Met Office deputy chief meteorologist David Hayter said.
“What we’re keeping an eye on for this disruptive snow is where exactly this milder air from the southwest bumps into the cold air that will be in place over the UK. It’s where these airmasses meet that there’s a likelihood of some substantial snow for some places.
“At the moment, models are showing us a variety of options for exactly when and how this situation plays out and it’s something we’ll be able to add more details to in the coming days.”