Drivers are being counselled to take care on the roads as numerous people across the UK assure their first snow this winter.
The Met Office has issued a yellowed admonish to “be aware” of snowfall and ice.
A corridor of snow 100 miles( 160 km) broad is moving from western Scotland, through the English Midlands, to London and south-east England overnight.
BBC Weather’s Jay Wynne did a few centimetres( one inch) of snow were likely on low levels, with up to 10 cm possible at higher levels in Scotland.
Parts of rural Scotland may assure temperatures plummet to -1 0C( 14 F) for a second darknes, he added.
The Met Office suggests clear skies will allow temperatures to descend widely to below freezing on Saturday evening, stimulating untreated footpaths and cyclepaths change icy.
There were further tells of solidifying fog on Sunday morning, which ought to be slow to clear.
Latest neighbourhood information from the BBC