High pressure is expected to be centred to the east of the UK initially, with a good deal of fine, dry and reasonably sunny weather in a south to southeasterly flow. Temperatures are expected to rise, to well above average in some areas. Later in the week there will likely be a gradual transition to less settled conditions from west to east, as low pressure becomes more dominant with an increasing chance of rain or showers by the weekend and into the final week of March, perhaps heavy in places. Temperatures, initially above average, will likely trend back closer to normal, although with more cloud this will tend to reduce the risk of frost to an extent.