FWIW 
Monday 16 July—Sunday 29 July
Often dry. Elevated risk of heat wave conditions.
There are slightly stronger indications than previously for hotter and somewhat drier than normal conditions into the second half of July. Indeed, high pressure is still likely to influence the weather over the country. It looks as though high pressure is most likely to shift a little further east across Europe; this should have two effects. First of all, the focus of the very dry conditions looks like moving to central and eastern Europe although the UK is still favoured to be somewhat drier than normal. Secondly, if high pressure does shift further east, this would allow a plume of heat to move in from central and southern Europe at times. Overall, temperatures are likely to be often above the July average and there is an elevated risk of heat wave conditions at times across the country. Indeed, there does appear to be prospects for temperatures to reach at least the low 30s Celsius at times. Occasionally, some showers or thunderstorms would be expected to drift in from the south, these appear most likely over southern parts of the country, with the north and north-east favoured to have the driest conditions. There are slight chances that high pressure could move far enough away to allow significantly wetter and somewhat cooler conditions to spread from the Atlantic. However, more likely is for rainfall amounts to remain somewhat below normal and temperatures to remain above the seasonal norm.
http://old.wetterzentrale.de/pics/MT8_London_ens.png
Not TOO much sign of a definitive breakdown here.