Grim weather warning for millions of Aussies: 'Flooding is possible'

The wild weather is set to continue for millions of residents on the east coast, as heavy showers show no sign of letting up.

Sydney is expected to cop up to 60mm of rain on Sunday afternoon and into the evening as heavy rains, which have plagued the eastern states this week, continue.

Overnight about 130mm to 150mm fell in the Jarvis Bay area, with the Bureau of Meteorology predicting the rainfall has begun to move north.

The wet weather is expected to continue into Monday, easing midweek, before returning next weekend - with up to 150mm possible in the next seven days.

Over the past seven days, eastern New South Wales and coastal Queensland have been getting an absolute soaking with up to 100mm of rain recorded over a vast swathe of territory.

The wild weather is set to continue for millions of residents on the east coast, as heavy showers show no sign of letting up

Sydney is expected to cop up to 60mm of rain on Sunday afternoon and into the evening as heavy rains, which have plagued the eastern states this week, continue 

Apart from showers in WA's southwest and in southern Queensland, much of the rest of the country is expected to remain fine and dry on Sunday.

Bureau of Meteorology senior meteorologist Dean Narramore, said areas south of Sydney have copped the heaviest falls so far, but the system has begun to move north.

'That heavy rainfall in the Illawarra is going to start moving north today so we're going to start seeing those heavy showers around Sydney this morning,' he told Nine's the Today show. .

'We're looking at a pretty wet late morning and especially afternoon and evening with widespread 30 to 50mm likely.'

There's been significant rainfall totals across eastern New South Wales and coastal Queensland in the past even days

Severe weather alerts have been issued for possible flash flooding in parts of the Illawarra district and thunderstorms north of Wollongong and east of Dubbo on Sunday evening.

'Flash flooding is possible about parts of the Illawarra district from early SUnday morning until late Sunday evening,' The Bureau said.

'Six-hourly rainfall totals between 100 and 140mm, with isolated falls in excess of 150mm, are possible.'

To the north, Brisbane is forecast to have cloudy weather with a slight chance of a shower on Sunday and Monday.

In Melbourne, not a drop of rain was forecast into next week, with the Windy City set to reach a high of just 20C..

Adelaide was likewise set it's dry and sunny weekend with a high on Sunday of 23C, while Canberra's light rainfall becoming less likely into the evening.

Dry but cloudy weather was forecast across the other capitals, including in Darwin, Hobart, and Perth, which was smattered by rain during the week.

Five Day Capital City Forecast

PERTH

Monday: Most sunny. Min 10 Max 21

Tuesday: Sunny. Min 11 Max 24

Wednesday: Mostly sunny. Min 13 Max 26

Thursday: Mostly sunny. Min 16 Max 27

Friday: Shower or two. Min 18 Max 26

ADELAIDE  

Monday: Mostly sunny. Min 11 Max 22

Tuesday: Mostly sunny. Min 10 Max 23

Wednesday: Mostly sunny. Min 11 Max 23

Thursday: Partly cloudy. Min 12 Max 23

Friday: Partly cloudy. Min 11 Max 22

MELBOURNE

Monday: Most sunny. Min 10 Max 20

Tuesday: Mostly sunny. Min 7 Max 20

Wednesday: Partly cloudy. Min 8 Max 18

Thursday: Partly cloudy. Min 9 Max 18

Friday: Partly cloudy. Min 9 Max 18

HOBART 

 Monday: Partly cloudy. Min 6 Max 17

Tuesday: Partly cloudy. Min 6 Max 18

Wednesday: Cloudy. Min 8 Max 17

Thursday: Partly cloudy. Min 8 Max 17

Friday: Partly cloudy. Min 8 Max 18

CANBERRA

 Monday: Partly cloudy. Min 6 Max 17

Tuesday: Partly cloudy. Min 5 Max 18

Wednesday: Shower or two. Min 4 Max 18

Thursday: Partly cloudy. Min 7 Max 19

Friday: Possible shower. Min 8 Max 18

SYDNEY

Monday: Showers. Min 15 Max 22

Tuesday: Showers increasing. Min 15 Max 22

Wednesday: Showers. Min 15 Max 21

Thursday: Shower or two. Min 14 Max 22

Friday: Showers. Min 15 Max 21

BRISBANE  

Monday: Partly cloudy. Min 16 Max 25

Tuesday: Showers or two. Min 17 Max 24

Wednesday: Shower or two. Min 16 Max 24

Thursday: Shower or two. Min 16 Max 24

Friday: Shower or two. Min 17 Max 25

DARWIN  

Monday: Mostly sunny. Min 25 Max 33

Tuesday: Mostly sunny. Min 24 Max 33

Wednesday: Sunny. Min 24 Max 33

Thursday: Mostly sunny. Min 24 Max 33

Friday: Mostly sunny. Min 24 Max 34