Temperatures are forecast to peak in Victoria and South Australia on Friday and in NSW on Saturday

Temperature forecast map for Saturday

40C

30C

25C

20C

Active fires over past 48 hours

Oodnadatta

Queensland

New South Wales

South Australia

Wollemi national park

Penrith

45C (Saturday)

Victoria

Port Augusta

48C (Friday)

Melbourne

40C (Friday)

Sydney

35C (Saturday)

400 km

400 miles

Temperature forecast map for Saturday

Active fires over past 48 hours

40C

30C

25C

20C

Oodnadatta

Queensland

Tibooburra

South Australia

Port Augusta

48C (Friday)

New South Wales

Wollemi

national park

Penrith

45C (Saturday)

Sydney

35C (Saturday)

Illawarra

Canberra

39C (Saturday)

Victoria

Melbourne

40C (Friday)

200 km

200 miles