Cold or very cold weather dominates
Risk of snow increases through into Tuesday and perhaps later in the week.
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Cold or perhaps very cold with frost and icy patches, while sleet and snow through central areas slowly dies away through the day, and with then blustery wintry showers developing across many northern and western areas, these often as snow across inland areas. Highs 0C to 4C.
Uncertainties over the details, but showery in the north and west, likely wintry especially on hills, England and Wales often dry with some bright or sunny spells but with overnight frost and ice for many areas, but with perhaps a few wintry showers in the south-east for a time. Highs 0C to 4C.
Another likely cold, frosty and in places icy start to the day with plenty of dry and bright, if not sunny weather across England and Wales. Potentially becoming more unsettled from the west as the day progresses with rain, sleet and snow developing. Windy as well with fresh or strong W or SW'ly winds Highs 1C to 5C
Uncertainties but rain, sleet and snow moving south-eastwards through the day perhaps with some significant snowfall in places, especially on higher ground. Colder showery weather returning, from the north-west, later in the day. Remaining cold or very cold. Highs 2C to 6C.
Unsettled weather may well return from the west through the day after a cold start with frost and ice, perhaps turning less-colder from the west later too in association with the more unsettled, wet and windy conditions. Highs 3C to 7C.
Unsettled and perhaps turning colder again for all in association with W or NW'ly winds. Showers or longer spells of rain are possible, especially in the north and west, driest in the south-east and with the showers turning increasingly wintry through the day. Highs 2C to 6C.