Snow is expected to fall tonight (Wednesday) and into tomorrow morning, forecasters have warned.
The Met Office said there could be snow showers and accumulations of up to 8cm overnight.
It has issued a yellow ‘be aware’ warning and drivers have been told to expect disruption.
The Met Office said: “Showers are expected to turn to snow across parts of northern Scotland during Wednesday morning, the risk then transferring to other areas through the rest of the day, continuing overnight and for much of Thursday.
“Across Northern England 3 to 8cm could accumulate by Thursday morning, especially over high ground. Over Scotland and Northern Ireland 5-10 cm may fall even at some lower levels, with more than 15cm possible over higher ground. Strong, gusty winds will lead to drifting and temporary blizzards over high ground, while icy surfaces and lightning pose additional risks in some areas.”