Temperatures will be different at different levels of the atmosphere, and that parfait could make for sleet, which is melted snow that refreezes before it lands, and possibly freezing rain, which freezes on contact with cold surfaces.
This snow should taper off to an end later this afternoon.
Skies clear tonight and temperatures will plummet to 17°, not a record low (11°) but frigid enough. We will stay mostly cloudy and wind will be from the north at 10-15 miles per hour. Low: 25. Wind: N/NW 5 miles per hour.
Tuesday night - Partly cloudy, with a low around 22. It could continue as snow in Providence Thursday night before changing back to rain overnight, the weather service says.
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Temperatures are expected to gradually warm the rest of the week, reaching the mid 50s by Friday. Breezy, with a south wind 9 to 14 miles per hour increasing to 16 to 21 miles per hour in the morning.
Wednesday will be another December-like day with sunshine and increasing high clouds in the afternoon.
"We are expecting this to bring some early winter weather with heavy snow and very cold winds in the north and a risk of wintry showers even across southern Britain. With more generally colder temperatures, there will be an increased chance of snow during spells of unsettled weather, especially for the north". Low: 40. High: 54. Northwest wind around 5 miles per hour.
'Although many places should be dry, showers are possible in the east. Mostly sunny Sunday with highs again in the mid-30s.