"This is about a 30 percent chance and has some support from similar setups in the past. "One model pushes the expected high pressure centre farther north, which would induce colder north to north-easterly wind flows and bring a risk of wintry showers, mainly to northern and eastern areas but this looks to be a low risk at the moment. More likely, colder air will stay away to the east." The Met Office also predicted "chilly" temperatures to grip the nation. The forecast between Tuesday, March 16 and Thursday, March 25, said: "At the start of this period, the weather is likely to begin settling down with high pressure building from the southwest.