Air from the north near the Arctic will send temperatures plummeting this week bringing a risk of wintry showers to Wirral.
Temperatures will average around 6C all week which could feature, frost, hail and sleet at times.
Any significant snow is expected to fall over higher ground in the far north of the UK.
However, the greatest chance of wintry showers will be during the early hours of Friday as temperatures will drop to just 2C bringing a risk of sleet.
The BBC weather forecast predicts that sleet showers will fall from 2am – 9am on Friday on Wirral.
Steve Ramsdale, Chief Meteorologist at the Met Office, said: “Although we’re going to see a few days with colder conditions, we shouldn’t be surprised that the start of winter brings a brief spell of wintry weather.
“Some parts of the UK, especially northern hills, may see snow, but for many this will only be short lived. We’ll be monitoring the forecast and we will issue warnings accordingly.”