Here is a summary of the latest NWP output for noon (GMT) on Tuesday.
Issued 0431z, 3/09/10.

Low pressure will approach the UK midweek. All the models except ECM
show it bringing rain to mainly England and Wales, along with
easterlies or ESE'lies. ECM stands alone with its more northerly
track, which would bring rain across the UK.

ECMWF: http://www.wzkarten.de/pics/Recm1201.gif
Low pressure covers Ireland, with southerlies for England and Wales
and easterlies over Scotland. The low fills in situ on day 6 and by
day 7 the remnants cover Scotland, with westerlies elsewhere.

MetO: http://www.wzkarten.de/pics/Rukm1201.gif
SE'lies cover the UK, with a low to the SW. The winds become ESE'lies
on day 6 as the low fills and moves eastwards.

GFS: http://www.wzkarten.de/pics/Rtavn1201.png
Easterlies cover the UK as the result of a trough over SW England. On
day 6 the trough fills over the English Channel, with ENE'lies for
all. NE'lies cover the UK on day 7, with a trough over SE England.

GEM: http://www.wzkarten.de/pics/Rgem1201.gif
The Canadian run bringsa complex low to the west, with a centre over
Northern Ireland. SSW'lies affect England and Wales as a result, with
SE'lies further north.

JMA: http://www.wzkarten.de/pics/Rjma1201.gif
Low pressure lies to the south, leading to easterlies for all.