Snow is set to fall across parts of the UK this week with temperatures set to drop overnight.
The Met Office said that "several shots of Arctic air" are moving in, bringing much colder and wetter weather.
Parts of the country are set to be hit by winds of up to 80mph which could cause “damage to buildings", forecasters said.
Yellow weather warnings are in place across parts of Scotland and Northern Ireland on Friday, extending to the rest of the UK, apart from London and the South East, on Saturday.
The Met Office said “very windy weather” could cause delays to transport, damage buildings, lead to bridge and road closures and cause power cuts.
The warning adds there’s a “slight” chance of damage to buildings, “such as tiles blown from roofs”.
Met Office Deputy Chief Meteorologist, Chris Almond, said: "Gusts of wind are likely to reach 50 to 60 mph widely, with 70 to 80 mph possible in coastal locations, particularly in parts of Scotland and Northern Ireland.
“As well as strong winds, rain will also move south across the country on Friday, with showers following turning increasingly to hill snow in the north. This wintry mix of showers will continue on Saturday, and although snow is possible almost anywhere away from the far-south, accumulations are likely to be confined to hills.
"It is going to be a windy period with potentially disruptive gales. These could cause some delays to road, rail, air and ferry transport with a small chance exposed roads and bridges could close. There is a slight chance of some damage to buildings, such as tiles blown from roofs and damage to temporary structures such as Christmas markets."
It comes after parts of the UK may have seen tornadoes as strong winds and rain battered the country at the end of October.
Gusts of over 80mph were recorded with reports of wind damage which caused major delays to travel out of London.
Hundreds of people, many travelling to Scotland for the COP26 climate summit, were left waiting at London's Euston station after fallen trees caused all trains to be suspended.
The Met Office added “prolonged periods” of snowfall are possible at higher elevations in parts of Scotland and northern England and Wales at the end of this week.
The mercury could dip as low as freezing in parts of London and the South East overnight, while remaining around 6C (42.8F) during the day on Saturday.
Experts have said the UK faces a higher chance of a wetter winter in the next few months, as households are urged to be prepared for the risk of flooding.
A Met Office outlook shows an above-average chance of the winter being wetter than usual over the three months from November to January, with the wetter conditions most likely in January next year and beyond.
With the potential for more wet weather and impacts from rainfall and winds, the Environment Agency urges people to check their flood risk online, sign up for flood warnings, and know what to do if flooding hits their home if they are at risk.
Watch: Flooding causes disruption in Cumbria