The four-day conference will focus on the opportunities the SNP believe independence will bring Scotland, with Nationalists seeking to contrast these with the consequences of remaining part of the UK.
Scotland's First Minister Alex Salmond is set to give a welcome address when the conference kicks off later.
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The model and her footballer husband announced the birth of their second child who they have named Liberty Rose.
After a wet and windy start to the week, conditions will gradually improve, with temperatures creeping up, and up.
A slowly improving day across southern parts of the UK as the active frontal system moves away southwards.