High pressure lying over the UK means that above average temperatures and spring sunshine will continue for the next few days. All four UK nations have seen their warmest weather of 2026 so far over the past two days, with Friday set to bring another warm day - possibly the warmest yet this year for Scotland and Northern Ireland. But the clear skies that bring the sunshine and warm conditions also mean that overnight temperatures can drop significantly. Some locations in the Midlands and southern England experienced a day/night temperature difference of around 21C following Wednesday's warmth which was followed by a sharp frost Thursday morning. It was a frosty start this week in Cropwell Bishop, Nottinghamshire Clear skies and light winds this time of year can mean that the Sun warms the ground quickly by day, pushing temperatures up in the strengthening spring sunshine. However, with a lack of cloud overnight, this also means that radiation escapes quickly once the sun sets.…