Saturday
A largely dry day on Saturday with sunny spells about, although showers looking likely to develop across parts of Scotland and could affect western parts of Wales in the afternoon. Cloud looks to thicken across west Ireland as low pressure circulates just to the west here, bringing some possible light rain and drizzle to some western regions later. Cloud will gradually thicken across southern and central England as well as Wales in advance of rain pushing up from the near continent and over southern English counties by the evening, heavy at times and possibly thundery. Highs at 15 to 20C.

Saturday Night
Rain, often heavy and possibly thundery, continues to spread northwards across much of England, Wales as well as Ireland and Northern Ireland overnight. Scotland staying largely dry with some clear spells about but cloud thicken from the south too. Some of the southern western Scottish islands, however, could slso see outbreaks of rain. Lows at 6 to 12C.
 

Sunday
An unsettled day on Sunday as rain continues to fall heavy and possibly thundery for many areas while tracking northwards into Scotland. Northern Scotland, however, does look like it will remain largely dry. Currently, rain looks to largely clear southern and central parts of England and Wales through the day allowing for drier conditions to develop here. Outbreaks of rain likely to continue to affect parts of Ireland and Northern Ireland. Top temperatures at 15 to 21C for most, lower in the cloud and rain.

Monday
Cloud and showery rain mostly across parts of southern and central England as well as Wales, sometimes heavy and possibly thundery. Drier and brighter across Scotland, Ireland and Northern Ireland but to expect some scattered showers to develop for some. Highs at a chilly 9 to 12C in the rain across parts of England and Wales, between 13 and 18C in sunnier spells elsewhere.