The weather this weekend in the UK is expected to follow a familiar pattern: one fine day followed by a blustery, wet day. After a week of alternating high pressure and unsettled weather, the forecast indicates a shift as Atlantic low pressure systems move in.

Friday is anticipated to be predominantly fine, with lighter winds and plenty of sunshine. Temperatures will range from 18 to 23 degrees Celsius in southeastern Britain, making it a pleasant day for outdoor activities. However, the calm conditions are not expected to last, as a new low pressure system approaches from the west.

As Friday evening rolls in, temperatures will remain comfortable, particularly in Central London where it could reach up to 21 degrees Celsius. However, by the early hours of Saturday, rain is forecasted to begin affecting Northern Ireland and western Scotland, with the system gradually moving southwards.

Saturday will see the arrival of wet weather, particularly in Northern Ireland and parts of western Scotland, with rain likely to spread across England and Wales throughout the day. While southern and southeastern England may experience some dry spells, the overall forecast suggests a blustery day with the potential for heavy downpours, especially in southern Wales and areas along the M4 corridor.

On Sunday, the weather is expected to improve slightly, with high pressure beginning to take hold again. Although there is still a chance of showers, particularly in England and Wales, many areas could enjoy fine, bright conditions. Temperatures may rise to between 20 and 25 degrees Celsius in southern Britain, providing a pleasant end to the weekend.

Overall, this weekend's weather will be characterized by a sequence of one fine, calm day followed by a blustery day with more clouds and rain. As always, it's advisable to keep an eye on local weather forecasts for updates and to prepare for changing conditions.