Snow and plunging temperatures are set to hit Britain after a March which was the warmest for 15 years - and the sunniest since 1929.
It has been a mini-heatwave that has seen people flocking to the seaside.
However, Sky News weather presenter Isobel Lang has said there may now even be snow in southern areas which only a few days ago were basking in the sunshine.
"Snow across eastern Scotland and northeast England on Monday night and Tuesday morning could bring some travel disruption, with around 5 to 10 cm (4ins) possible, especially over higher ground," said Lang.
"As the cold northeast wind sets in further snow showers are expected to pepper eastern fringes of Scotland as well as the Northern and Western Isles.
"The cold wet weather is set to sink south across the rest of Britain bringing a tricky mix of rain, sleet and wet snow especially over hilly areas.