Mr Bowles said: 'It'll be damp and grey in the south with a high on 11C but brighter in Scotland and the north with highs around 7C.
Ladbrokes spokesman Jessica Bridge said: "Unfortunately it now looks like we're going to have a wet Christmas instead of a white one, but the country can at least rejoice in the warm temperatures on offer".
The worst of the rain will fall over northern England and Northern Ireland.More news: Winter Solstice pictures and tweets from across Scotland
Earlier this week heavy rain flooded parts of the country with Dunkeswell Aerodrome in Somerset experiencing 27mm (1.1in) of rain in 24 hours when the area was under a Met Office warning on Wednesday - almost a quarter of its expected monthly average of 121mm (4.8in).
"Temperatures down here are on the mild side but further north a pretty chilly start to the day".
Scotland should be dry and largely bright throughout the day.More news: What Is the Winter Solstice Marked in Today's Google Doodle?
The snow will come with ice pellets and there is a risk of freezing rain early in the morning. Boxing Day will also be mild and cloudy with it dry for most of the United Kingdom'. There will be some patchy light rain in parts of the south and west but there will be some good dry periods, too, with short sunny spells mostly in Ulster.
"There could well be some low cloud around potentially some hill fog".
Christmas Eve will be misty and mostly cloudy.More news: Giants RB Saquon Barkley considers Titans game a ‘reality check’
It will be misty, mild and mostly cloudy in the coming days with a good deal of dry weather.