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

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.

Canberra hasn't seen any heatwaves this summer, but that doesn't mean it hasn't been a hot one.

Gusty winds buffeted parts of Sydney late on Tuesday as a band of dry thunderstorms moved across parts of eastern NSW.

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.

The Bureau of Meteorology has warned of possible flash flooding in the Queanbeyan and Molonglo rivers on Friday.

Slow-moving Typhoon Hagupit has weakened as it churns across the central Philippines islands, easing fears of widespread mass destruction, but officials warn the storm could still bring severe flooding to the low-lying capital Manila.

Santa looks set to bring Melburnians a mild and mostly sunny Christmas Day.

NSW will likely cop its third buffeting from an east coast low in five weeks but there is some good news.

Brisbane is in for a wet start to the week, with storms likely to hit the city on Monday and rain predicted for the following four days.

In a town regarded as one of the world's hottest, Marble Bar locals are still reminded to take care as the mercury hit 48 degrees Celsius on Monday.

Growing winds and driving rain from Hurricane Hermine lashed Florida's northern Gulf Coast on Friday as forecasters warned of "life-threatening" floods.

Thunderstorms have rumbled their way across Sydney for the ninth consecutive day, with more thunder and lightning on the horizon throughout Monday morning and into the afternoon.

Sydneysiders can expect more rain to fall tonight before it clears to a cloudy but chilly Monday morning.

Sydneysiders look set for a soggy commute to end the working week, as an intense low pressure system off the coast delivers widespread showers, wind and large and powerful surf conditions to the city.