Drivers have been advised to allow extra time for their morning commute owing to icy roads, with ice and snow warnings issued across the UK.
Yellow ice warnings are in effect across the globe until 10:00 GMT. The forecaster said overnight sleet is set to leave behind slippery surfaces and “icy patches” on roads.
Snow is expected to fall in Scotland, while heavy rains in south-east England may convert to snow.
Due to “a potential of snow on high ground and slick surfaces on lower regions,” Met Office meteorologist Craig Snell advised Monday morning commuters to leave plenty of time for their travels.
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He added: “This could be a problem during rush hour, it could cause a few problems on the roads. The risk of flooding is still there.”
Northern Ireland, Northern Wales, Northern England, the Northern Midlands, and southern Scotland are all under an ice warning until 10:00 a.m.
There is a yellow warning for snow over Kent and Canterbury until 08:00, but the rain is expected to clear from the South East during the morning.
Mr Snell said that most of the nation will be dry with sunny spells through the rest of Monday.
The rest of the week is predicted to be cold with patchy showers, particularly in northern areas, until temperatures rise at the weekend.
In northern Scotland, a yellow warning for snow and ice covers the area until 10:00 on Wednesday.
The cold snap comes after widespread flooding left parts of the UK submerged over the weekend – with more than 140 alerts still active.
Sarah Cook, from the Environment Agency, said workers on Monday will continue dealing with flooding in the areas which were worst hit by the weekend deluge.
She added the rain on Sunday night in the south of England could give rise to the possibility of a minor risk of flooding to isolated properties, and she advised people to to stay away from swollen rivers and to avoid driving through flood water.
As of Sunday night the Environment Agency had 86 flood warnings and 142 flood alerts in place across England as of Sunday night.
This story was adapted from BBC.