Issued: 0930hrs Tuesday 31st August 2021
Duty forecaster: Alexi Venerus
A change to lower pressure from the weekend
High pressure will get nudged out of the way by Atlantic lower pressure this weekend. Outbreaks of rain will sweep across the country ushering the start of the change in conditions. The new week will see lower pressure generally dominating although ridging higher pressure is not too far away.
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High pressure centre slides to the east of Scotland on Friday. It continues to bring dry and settled conditions for most. Less of a NE'ly drag of moisture as winds relax here giving perhaps more scope for widespread sunshine. Highs at 17 to 25C.
High pressure is likely to stay nearby, continuing to drift slowly eastwards on Saturday, but cloud cover may become more widespread through the day. Rain looks to reach parts of Ireland and southwestern parts of Britain later in the day, but staying dry for most. A warmer day still with highs reaching 26C across parts of central and southern England, between 18 to 22C elsewhere.
A band of rain will push across from west to east on Sunday then sunny spells and drier conditions but also some showers developing behind. A cooler day with highs between 16 to 23C.
Variable cloud cover as well as showery rain across England, Wales and Ireland, some spells could be heavy. Currently, Scotland and Northern Ireland is looking drier and brighter with the best of the sunshine. Highs at 16 to 23C.
Low pressure looks to be the dominant weather feature on Tuesday which will bring rather a lot of cloud cover about as well as showery rain, heavy spells across some western regions. Highs at 17 to 23C.
A brief ridge on Wednesday could see southeastern and southern regions of England stay mainly dry with some sunshine and feeling reasonably mild. Elsewhere, expect spells of rain to push in, heavy across some western regions. Highs in the southeast reaching to 24C but elsewhere between 16 and 22C.