The coldest air of the season is set to blast through the United Kingdom early next week.
A low pressure system and associated cold front will bring a period of rain to the United Kingdom and Ireland Sunday into early Monday. Behind this cold front, a very chilly air mass originating from the Arctic will spread over the region.
The colder air will reach Scotland and Northern Ireland on Monday before pressing across the rest of the United Kingdom by Tuesday.
Along with this much colder air, there will be rain and snow showers occurring across Northern Ireland, northern England and Scotland. Any accumulating snowfall is expected to be confined to the higher terrain away from the coast.
For many of the areas highlighted above, this will be the first snowfall of the season.
Although London will escape the threat of snow this time, the coldest temperatures of the season are still expected.
High temperatures over the weekend and on Monday will be near 10 C (50 F). After the cold air arrives, highs are only expected to reach 4-5 C (near 40 F) on Tuesday and Wednesday.
The normal high temperature in London this time of year is 9.4 C (49 F).