but as we move through thursday night into friday, that weather front will make progress southwards. you can tell from the blue triangles that this is a cold front. that means it is introducing colder air, the blue shades spreading southwards across the chart for friday. across the northern half of the uk, friday is likely to begin with a touch of frost, and it certainly will feel chillier. but what the front is also doing is it's clearing a lot of the cloud away, so there will be more in the way of sunshine. 15 or 16 degrees down towards the south, but further north — look at that — just 9 in aberdeen. but that colder spell won't last all that long. milder conditions will return from the west during the weekend. with that, we'll start to see some outbreaks of rain.