UK Forecast - August 20, 2026
Largely dry weekend
Chilly starts

Friday
A cool start for many on Friday. It will be a largely dry day with sunny spells across Scotland into northern England, Ireland and Northern Ireland though a few scattered light showers are to be expected. Showers, mostly affecting coastal regions at first, will gradually develop more inland and become heavy and likely thundery across central regions of England and Wales before moving into the Midlands and East Anglia later in the day. A noticably cooler day for all with highs at a fresh 16 to 21C.


Friday Night
Heavy showers should ease and clear away to the southeast of England later in the evening. Showers still to affect northern and western coasts and hills, otherwise a dry and chilly night for many with clear spells. Lows dropping back to 6 to 10C.

 
 
 


Saturday
The ridge of high pressure builds in west of Ireland on Saturday. Chilly at first for most. A largely dry day with decent sunny spells, however showers will affect northern and western coasts and hills for a time before dying away. Showers will affect northwest Scotland throughout the day. Highs at 17C in Scotland, 22C in southern England.
 


Sunday
High pressure sits over the country on Sunday. Another chilly start for some. Most areas are likely to be dry with plenty of sunny spells, though much of Scotland is cloudier. A few scattered showers throughout the day, these mostly light and across north and west Scotland and more cloud across northern areas. A warm day for most with highs at 18 to 25C.