Hi yes my cockapoo noticeably matured around his 2nd birthday, he really grew up and I only now really class him as an adult dog. He is a real pleasure to have around. 
As for the toileting in the rain, although Weller is never keen to go out in the rain, he has never resorted to going indoors, thankfully! So sorry I have no tips other than shutting them outside for piddles even when it's raining
As for the toileting in the rain, although Weller is never keen to go out in the rain, he has never resorted to going indoors, thankfully! So sorry I have no tips other than shutting them outside for piddles even when it's raining