Changeable autumnal conditions are forecast to continue across the UK this week, with periods of wetter and windier weather developing. Monday is set to bring a brief spell of warmth and sunshine before temperatures decline to levels more typical for September later in the week.
A strengthening jet stream is expected to introduce deeper, low-pressure systems as the week progresses, with the potential for minor disruption towards next weekend. The jet stream will shift to a more southerly path, bringing lower pressure, rain, and brisk winds, alongside a drop in temperatures.
Monday is predicted to be the warmest day, with air from a south-westerly direction. Many areas will remain fairly cloudy, with some rain near western coasts and hills. Despite this, it will feel warm and humid, with temperatures exceeding 20C in many locations. Central and southern England could see temperatures reach up to 26C where the sun breaks through.
By Thursday, winds will become more westerly or north-westerly, ushering in cooler air. Temperatures are expected to be around 14 to 16C in Scotland and Northern Ireland, and 17 to 20C in England and Wales by this time.
While higher pressure may build again by the end of the month, the prospect of a late-September heatwave remains uncertain, with no current indications that one is on the cards.