A very warm final third of June to come. I haven't been doing my tracker this month as too busy.
However, based on the current CET being around 14.5C the forecast temperatures for the final 10 days of June suggest the CET will rise by around 1.3-1.4C compared to where is now. So a finishing CET between 15.5C and 16.0C looks likely. Best guess at the moment would be 15.6C to 15.7C. So not quite as warm as June 2017 and June 2018 which both reached 16C. But not far off.
Hence the winner this month is likely to come from one of the top 4 in the prediction table.
It also means we will likely get close to the record CET for the first six months of the year. Probably finishing just behind 2007.
Peak of the CET daily figures this week likely to be on Thursday. Very warm nights and days. My current estimate for Thursday is a CET of 21.75C. Current record for 25 June is 21.6C.
Absolute maximum temperature date records look unlikely this week but not impossible. From 23-28 June the date records are all held by 1976. Running from 32.2C on the 23rd to 35.6C on the 28th. Best chance of a record is on Thursday where the record is 33.5C. Current BBC forecast going for 32C on that day in London. So I think we probably fall a bit short.