Barbecues and beach trips will be off the agenda this Bank Holiday as sub-zero temperatures and even some snow are set to keep people at home.
The mercury could plummet to minus 3C in Scotland while the south coast of England will remain under clouds, forecasters said.
The dismal outlook for the long weekend follows weeks of wet weather that brought floods in some areas.
MeteoGroup, the weather division of the Press Association, predicted a chilly holiday.
Forecaster Tom Tobler said: “It doesn’t look like it’s going to be beach weather.
“We’re looking at some wintry showers in the North over high ground and there may be snowfall. Temperatures will be dipping on Saturday night to close to, or just below, zero in parts of the Midlands and Wales.
“It’s going to be quite cold.”
Temperatures today and tomorrow are expected to climb no higher than 11C, with the brightest outlook in the South and South West, he said.
And Monday is expected to fare no better, with low pressure forecast to bring rain from the West.
The South West in particular could see heavy downpours, it was predicted - spelling bad news for ice-cream vendors and good news for DIY stores.
Four-day weather forecast: Page 20.