Here's your state-by-state weather forecast for Monday, January 18: New South Wales and the ACT A few showers and the chance of thunderstorms in the northeast. Dry and mostly sunny over the remainder. Daytime temperatures mostly near average. South to southwesterly winds in the west, west to southwesterly in the southeast, and northwest to northeasterly in the northeast. Sea breezes possible along southern parts of the coast. Sydney can expect a top temperature of 29C and Canberra 31C. Victoria Mild and partly cloudy in the south, warm and sunny in the north. Isolated showers in the south, mainly near the coast.