Parts of New South Wales and the ACT shivered through their coldest nights since September. Clear skies combined with light winds overnight causing the mercury to plummet. The ACT and southern parts of NSW were the coldest, as a high pressure system sat over the region in the early hours of this morning. Bega and Albury in NSW both saw their chilliest mornings since September, reaching one and two degrees respectively. Canberra and Tuggeranong in the ACT plummeted to minus two degrees, also their coldest nights since spring. In and around Sydney, residents would have been feeling a bit colder than usual this morning. The city fell to 11 degrees, its second coldest morning since October, while Campelltown and Badgerys Creek dipped to just six degrees, their coldest since October. Saturday night won't be as cold as cloudier and windier conditions move over the region ahead of a low pressure trough. However, cold nights are on the cards again on Sunday and Monday as a cooler air mass in the wake of the trough combines with clearer skies and lighter winds.