This weekend is set to be another warm, muggy one - and next weekend may be much the same.

More thunderstorms expected in the territory this week before a drenching of up 100 millimetres of rain.

Canberrans can expect a cool change from Monday after a warm and windy weekend.

Forecasters predict heavy rain, strong winds and increasing swells.

After a year of driving global temperatures to unprecedented warmth, the giant El Nino weather event in the Pacific is officially over, raising hopes that drought-hit regions may be in for some relief in Australia and elsewhere.

Sydney's run of balmy weather will take a break as a strong cold front brings a wintry chill to much of the state's south.

Sydneysiders can expect several days of rain-soaked commutes after an early morning downpour ended three weeks of uninterrupted sunshine.

South-east Queensland is mopping up after being battered by a line of intense thunderstorms that cut power to more than 27,000 homes and businesses.

If you woke to the sound of thunder early this morning be prepared for it to continue throughout the day.

Melbourne is bracing for flooding as a huge storm moves across the state, with falls of 50 milimetres in the city's north-east suburbs likely on Saturday morning.