Here is a summary of the latest NWP output for noon (GMT) on Wednesday.
Issued 0545z, 20th June 2009.

NE'lies will affect much of the UK midweek, due to a high to the north or
NE. Western areas as a result will be warmest and will see the most of the
sunshine.

ECMWF: http://expert.weatheronline.co.uk/da...mwf/ecmwf.html
NE'lies cover the UK on days 5 to 7 as high pressure persists to the north
of the UK.

MetO: http://expert.weatheronline.co.uk/da...ukmo/pslv.html
The UK lies under SE'lies and ENE'lies, with a high over the North Sea.

GFS: http://expert.weatheronline.co.uk/pslv_frame.htm
High pressure lies to the north, with NE'lies for the UK. Nothing much
changes on day 6, but by day 7 the high retrogresses and NNE'lies move over
much of the UK as a result.

GEM: http://expert.weatheronline.co.uk/da.../gem/pslv.html
The Canadian run brings a ridge over the UK and a high to the NE. NE'lies
cover England and Wales, with SE'lies elsewhere.

JMA: http://www.wzkarten.de/pics/Rjma1201.gif
The Japanese run shows NE'lies for all, with a high to the north.