Mate, tell her to get a k200d - i've been hammering mine in the snow here in Canada.
(and if it isn't snowing in the high country in NZ, it will usually be raining - had plenty of days in the hills where everything is wet).
If that is too big apparently the Pentax W60 is supposed to be pretty good (28-140mm internal zoom - sealed, Li-ion battery - good in the cold).
I'm also looking at the canon G11 which is built pretty well but really pricey.
DPreview did a collective test a little while ago
here in which the W60 did well.
Cheers and congratulations!