Looking at the Met Office forecast, clouds will part for sunshine around midday, and temperatures remain rise through the morning, with a high of ten degrees at midday.
Into the evening temperatures will cool, dropping to four degrees by 9pm.
Though the Met Office does not expect rain to fall at any point in the day.
Most places will start #Wednesday morning frost free 🌡️
Showery #rain moving south across England and Wales with some bright spells in places
Colder, sunnier and breezier conditions following from the north with a few showers
Turning windier with wintry showers in NE Scotland pic.twitter.com/LNs6RATNe4
— Met Office (@metoffice) January 18, 2022
Giving the forecast for Wales, a Met Office spokesman said: “Cloudy and damp first thing but turning brighter and colder throughout the day. Long lived sunshine by the afternoon, but feeling cold in a northwesterly breeze. Maximum temperature nine degrees.
“Staying dry with largely clear skies overnight for most across Wales. Temperatures dropping leading to a widespread frost by the morning. Minimum temperature -3 degrees.”
For Thursday, the Met Office spokesman added: “A sunny day with lighter winds than Wednesday, though still feeling cold with a frosty morning and evening. Maximum temperature seven degrees.”