If you can't get a code in time, don't worry
Go to
www.nav2000.com and in the top box entitled l'information aeronautique pour le pilote loisir, type the icao code for the aerodrome you require.
Then move the cursor to the weather icon & click.
Hey presto, weather TAFS & METARS for the aerodrome. With its update in small writing at the top.
There is also a dropdown menu of all the weather for other aerodromes starting nearest at the top, eg Cherbourg, then Alderney, Jersey, Guernsey, Caen, Dinard, Bournemouth, etc
It works I have just checked before posting.
Also if you click on the I icon, you will get full aerodrome info.
It is like an online delage. The small links on the aerodrome sites are also good, for example the Bagnoles de l'orne link to the local aeroclub gives you flying French pour les Anglais.
It even gives you en-route notams, again just tried it (EGJJ-ELLX)& it works.
Happy planning
FB
But I agree with Cusco, if you want a code just get one.