Damaging winds and blizzard conditions are forecast for the ACT and region from Monday to Wednesday.

Googong dam has begun to spill again, as Wednesday's wet weather pushed it to capacity, while sporting grounds across the territory were shut and chaos reigned on Canberra's roads.

The hyperactive hurricane season in the Pacific has jumped up another gear, spawning a record trio of category 4 strength tropical storms that will give the powerful El Nino event yet another boost.

Melbourne could be hit with floods this week as recent rainfall puts pressure on catchments at capacity.

Three days of heavy rain in mid-April were enough to make it Sydney's wettest autumn in 12 years but conditions have largely dried up since.

It was the near miss that went viral after a lightning bolt got strikingly close to a Qantas jet mid-air. A few months later and it has happened again.

It was a day which saw tops of 39.2 degrees in the city and 40.7 in the west, and ended dramatically with severe thunderstorm warnings across the west.

November proved to be a warm chaser to a thirsty October, with temperatures hovering two degrees above average.

A major climate summit of more than 190 nations was set to run overtime as delegates struggled to narrow gaps on guidelines to reduce greenhouse gas emissions and raise aid for developing nations.

Sydney's run of exceptionally chilly mornings will take a break for a few days but a return to sustained milder conditions may be weeks away.

Canberrans spent much of Valentine's Day looking for ways to cool off and beat the heat as the capital sizzled.

An Australian credited with creating a technique that has helped reforest millions of hectares of degraded land globally has won the 'Alternative Nobel Prize'.

A strong cold front will sweep over much of Australia over the weekend, bringing potentially the largest outbreak of frigid conditions in 15 years, the Bureau of Meteorology said.

The past five years have been the hottest on record.

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

The Coodardie cattle station may not be the most likely place to find a farm in sync with nature.

It will be a wet start to the weekend for Sydney with rainfall of up to 30 millimetres as a low pressure system from the north-west moves in.

Rivers and water catchments across the state’s east coast have not had enough time to dry out since the recent flood emergency, says the weather bureau’s senior meteorologist.

Sydney is in the midst of a spider boom, with "perfect conditions" leading to more offspring than usual surviving and resulting in many plants and other objects being draped with silken webs, according to the Australian Museum.

It was the perfect winter weekend to stay indoors with the Perth metropolitan area drenched in rain and battered by strong winds and hail stones.