While June 2021 should be cold in wider Black Sea region, Greenland, Iceland and later Scotland and Ireland, too, July 2021 should bring overall warm temperature anomalies across Europe - mainly in continental parts, but too in western and central Mediterranean, southern and eastern Scandinavia or England.
Forecasts of ECMFW are favorably for July´s heatwaves across the continent, although, warmer forecasts for April 2021 from ECMWF were clearly discomfiture (in March, warm anticyclonic April 2021 was forecasted).
Now are however forecasted temperature anomalies above Europe wider and stronger and our experimental forecast for Summer 2021 from the end of May 2021 /https://mkweather.com/experimental-cfsv2-forecast-for-summer-2021-in-europe-heavy-storms-short-peak-in-july-and-early-autumn-in-august-2021// has seen probability of the peak of summer in Europe between 10.-30. July 2021, too.
While in June 2021, warm temperature anomaly should move from western Europe and Scandinavia above East-Central Europe and western Balkan, in July 2021, warm anomaly is forecasted from the Spain to Finland, while cold air masses will persist above northern Atlantic, between Greenland, Iceland, Ireland, Scotland and Norway.
Interesting are 6-month forecasts of expected NAO index, too, with NAO- October and December 2021 and NAO+ November 2021, what are similar forecasted conditions such as in 2020, with risk of colder Winter 2021/2022, such usual.