It was a spring-like day in parts of Queensland and NSW today, although a return of wintry weather is just around the corner. Warm northwestlery winds ahead of an approaching cold front caused temperatures to climb six to seven degrees above average in parts of both states today. Sydney had its warmest day in two months, reaching a top of 22.9 degrees shortly after 2:30pm. This is a temperature more typical of April than July. While Brisbane's 26.3 degrees today was only the city's warmest day in two weeks, the same temperatures at nearby Amberley was its highest maximum since May. A standout today was Moree's 25.6 degrees, which was the northern NSW town's warmest July day in 32 years. Evans Head reached 27 degrees, its warmest day in three months. Today's warmth in northern and eastern NSW was a stark contrast to the freezing weather gripping the southern ranges. A pool of cold air behind the front allowed snow to fall on the alps all day, with the weather station at the top of Thredbo registering temperatures around minus three degrees all afternoon. Cold air will spread further north tonight and on Wednesday as the front continues its march towards the eastern seaboard. Temperatures are forecast to be up to 10 degrees cooler tomorrow in the wake of this change. Moree is expected to go from 26 degrees today to a cloudy top of 16 tomorrow. Other maximum temperature drops between today and tomorrow include 28 to 19 degrees in Roma, 26 to 20 in Brisbane and 23 to 18 in Sydney. The impending cold air may cause snow to fall on higher ground of the Central Tablelands in NSW from tonight and flakes may even pepper the peaks of the northern ranges on Wednesday.