UK weather forecast: Coldest Halloween 'in 100 years' with 10cm of SNOW set to blanket Britain

Britain's weather forecast for Halloween looks downright scary, with temperatures set to plunge and up to 10cm from possible snow in parts of the country.

Trick or treaters and party revelers will need to wrap up because it could be the coldest Halloween in almost 100 years, it is claimed.

In Scotland, Northern England, Northern Ireland, Wales and Northern Ireland, London has temperatures drop to -7C in some places.

The conditions could be dangerous in the north, where blizzards could develop and wreck havoc on the roads.

Things will take a turn for the worse later in the week, with the Met Office predicting cold and heavy blustery showers on Friday and Saturday.

Snow is likely over northern hills.

These conditions are likely to persist as they continue to slide.

They will drop up in places up north, and in the other digits elsewhere, including the south, at night.

Some forecasters are predicting up to 10cm on the ground in Scotland, and they are not London.

James Madden, of Exacta Weather, told the Express: "London, Wales, and parts of central England towards the end of this week.

"These are likely to be made to come alive, but they are still very early for wintry weather around the capital.

"More significant snow and blizzards are likely to be more prevalent, particularly, but not restricted to parts of northern England."

Snow showers are expected through Halloween (Wednesday, October 31) and into early November, he added.

Temperatures of at least -7C are possible in the UK by the middle of next week, but it could be colder.

The coldest October 31 on record was in 1926 when temperatures plunged to a chilly -10.6C in Wolfelee, Scottish Borders.

Next month is expected to be colder than average and particularly snowy, Mr Madden warned.

The Met Office said this week's sudden drop in temperatures will be a "shock to the system" after last weekend's unseasonably warm weather.

A spokesman said snowfall in Scotland.

Met Office five-day forecast

Tuesday: Many places will have a dry day with bright or sunny spells. Skies will be cloudier in north and west Scotland with storms of rain and drizzle. Windy in the north with gales in the northeast at times, breezy elsewhere.

Tuesday night: Rain and drizzle continuing in parts of Scotland. Largely dry elsewhere with patchy cloud, but some drizzle is possible over hills in northern England. Winds gradually easing.

Wednesday: Dry for most on Wednesday with sunny spells. Cloudy in north and west Scotland and Northern Ireland with some patchy drizzle. Lighter winds than Tuesday, but breezy in the north.

Thursday to Saturday: Largely cloudy with rain moving into the northwest. Turning bright, windy and colder on Friday and Saturday with heavy blustery showers. Snow likely over northern hills.