Uncertainty on the weather remaining ridiculously high as of the last update. Some light rain pushing down tonight into tomorrow (at most around 1-5mm in the south and east whilst 5-15mm up north and west) then after that, high pressure will ridge in for a time bringing warmer conditions this weekend, perhaps even hot for a time inland to the southeast. But it will be a sweat fest as the cloud will be persistent since it's a tropical maritime air mass. Any breaks in the cloud are most likely around southern coastlines. A cold front expected to push southwards Monday into Tuesday introducing cooler air for a time. After that, absolutely zero clue from this point on with the outlook changing and changing every single few hours.
*If I were to take a guess*, we would end up with more warm conditions after the cold front introduces cooler air very temporarily on Tuesday into Wednesday with the Azores High ridging through us going up to Scandinavia forming an Omega block. An Omega block involves a large area of high pressure lying over top of us or near us with low pressure either side of the high forming the shape of the Greek letter, Omega. This in Summer time translates to hot and dry conditions. An Omega block for instance brought the recent heatwave from late June to early July. Why do I think this'll end up the case? The jet stream which gives us our normal cool and wet Summer conditions via Atlantic depressions has been very weak this Summer and continues to do so through the rest of July. Another question you may ask is where have our normal conditions been? Simple answer is Iceland and Greenland. Reykjavik in Iceland has had its worst Summer on record with June 2018 being the city's dullest June ever recorded. It's also been very wet there. In regards to the opening sentence of this paragraph, anything is likely at this stage. My thoughts were based on how Summer 2018 has gone down so far than anything else though you could also include the North Atlantic Oscillation (NAO) staying positive to support that point which promotes Azores High ridging.
An Omega block looks like this on a 500mb height synoptic.
Still all to play for.
These are the kind of temperatures you can expect for the next few days, coolest in the northwest and warmest in the southeast:
Friday - 18 to 21c Saturday - 16 to 23c Sunday - 17 to 27c Monday - 17 to 25c Tuesday - 17 to 21c Wednesday - 17 to 21c