Powerful rain and hail bomb is set to strike Sydney – but a 36C heatwave is just round the corner 

New South Wales is set to be hit with severe thunderstorms and hail bombs before Sydneysiders swelter through a 36C heatwave.

The Bureau of Meteorology has issued a heavy rain warning, with out-of-control winds and hailstones the size of marbles expected to hit the east of the state on Monday night and Tuesday. 

Storms were seen brewing over the city on Monday afternoon, with hail already falling on the north shore.

The Sydney, Illawarra, Hunter region and the Central Tablelands will see another stormy day on Tuesday. 

The stormy conditions will be offset by temperatures of up to 33C in the CBD on Tuesday, and 36C in the western suburbs. 

The Bureau of Meteorology’s Katarina Kovacevic told Daily Mail Australia the rainfall will help to ease conditions over fires in the state’s north.

‘But because the rain has been so hit and miss its unlikely to provide lasting or widespread relief,’ she said.

Sydneysiders will get a reprieve from the wet weather by the end of Tuesday night, before Wednesday is expected to see an average November high of 23C.  

Ms Kovacevic said Glen Innes in the Northern Tablelands received 60mm of rain between 9am on Sunday and Monday morning.   

‘We’ve also seen storms today through areas in the north. The highest rainfall total was in excess of 70mm at Mount Seaview near Port Macquarie,’ she said.

The stormy conditions will be offset by temperatures of up to 33C in the CBD on Tuesday, and 36C in the western suburbs