Figures released on Friday show the official storage level for the region at 100 per cent, rounded up slightly.

Both Grahamstown and Chichester dams, as well as Tomago sandbeds, are at 100 per cent capacity according to Hunter Water. Anna Bay sandbeds, is at 99.2 per cent of its 16,000 megalitres.

"Essentially storages are as full as they can be," a Hunter Water spokesman said.

"Overall storages are at 99.95 per cent and, due to rounding, storages have reached 100 per cent capacity for the first time since 2001."

It is the first time Hunter storages have hit the official 100 per cent mark since 2001.

The figures are a marked change on this time last year, with both Tomago and Anna Bay sandbeds up just under 40 per cent compared with the April 2020 levels.

Grahamstown is 31.8 per cent higher than the same time last year.

The heavy rain that delivered flooding to so much of the state delivered marked change at Tomago, where levels are 30.9 per cent higher than a month ago.

Rain is expected to be far from Hunter minds this week, with sunny conditions forecast in Newcastle until Wednesday when clouds, but no rain, arrive towards Saturday.

Instead, temperatures are expected to nudge towards 30 degrees in many parts of the region late this week. Scone and Muswellbrook can expect whiplash on Wednesday, with a maximum of 29 degrees and a low of 11.

Minimum temperatures will shiver into single-digits on Monday night, with those towns to expect six degrees and a relatively balmy nine degrees along the region's coast after the sun drops.