The unsettled weather is set to continue. The reason I think this is happening is because high pressure is situated and settled over Greenland and this is causing blocking. It is never good to see high pressure over this area in the Summer. During the winter it is for snow and cold lovers.
The high pressure over Greenland is set to remain in place, so there will be little change in our weather for sometime. So cool temperatures and rainfall above average is the outlook for the time being. These two images shows the high pressure over Greenland and the position of the Jet stream leaving us on the cold side of the jet.