Starting fine with spells of hazy sunshine throughout much of the morning. Cloud will continue to thicken though with showery rain arriving and spreading slowly southeastwards. Parts of southeast Wales may remain dry and most will feel warm. Maximum temperature 22 °C.
Remaining rather warm for much of the night with further outbreaks of showery rain. This will ease by dawn with most places becoming dry, clear and a little fresher. Minimum temperature 14 °C.
Once the cloud clears, Thursday will be a largely fine day with warm spells of sunshine. It will feeling slightly fresher though. Maximum temperature 20 °C.
Outlook for Friday to Sunday:
Unsettled on Friday with stronger winds and outbreaks of heavy rain possible. This clears to sunshine and heavy, thundery showers on Saturday, but most will be dry again by Sunday.
UK long range weather forecast
Sunday will bring a mixture of sunshine and showers across northern Britain, with largely dry conditions to close out the weekend in the south. Into the start of next week, low pressure is most likely to be close to northwest Britain, bringing stronger winds and occasionally heavy rain. Further southeast, it should be mostly dry with the potential to tap into very warm air drifting north out of Europe. Towards midweek, the wetter and somewhat cooler weather in the northwest looks to push further southeast, displacing the warmth and sunshine here. By the end of the month, a more widely changeable pattern looks most likely, with the wettest weather most likely further to the northwest, and sunshine more prevalent in the southeast.
As we move into August, the final month of the meteorological summer, confidence is low in the forecast with no one single weather pattern looking to dominate. As is often the case in summer, this could well mean plenty of fine, dry weather, interspersed with occasional thundery outbreaks, leading to marked local variations in rainfall. Temperatures are likely to pan out above average, perhaps more especially in the south and west.