Originally Posted by
adam.smith
A couple of things I've read online, including
this, suggest that weather on a late inbound isn't a valid excuse, under EU261, for a late arrival of the next flight, which would mean the fact that 880 was delayed due to weather shouldn't impact OP's claim.
Correct, flight plan for 881 was not delayed by weather.
As important for OP, were you informed of your Rights when the original delay occurred in Paris? AC is obliged to tell you there and then, and if NOT, then you have further recourse of complaint.