An early morning storm on Sunday morning dropped over 20mm at the city's official weather station at the airport, adding to the 40-plus millimetres that was recorded across Orange over the back end of last week.

That storm brought the city's total to 68.4mm since Thursday.

In 2005, Orange recorded 130mm on the first eight days of November - 80mm of it falling in a torrential 24-hour period to 9am on November 8.

And the rain looks set to continue into the working week, too.

There's a chance of rain every day. There's an 80 per cent chance, according to the Bureau of Meteorology, of rain on Monday, with as much as 6mm likely.

Across the rest of the week, there may be some respite from the wet on Tuesday with just a 30 per cent chance of rain, but around 30mm could fall across Wednesday and Thursday before a cool, wet lead-in to the weekend.

There's an 80 per cent chance of rain on Friday, with 20mm a chance. The top temperature on Friday is also set for 14 degrees Celcius. A top of just 12 degrees is predicted for Saturday.

It'll be a weather pattern replicated right across Australia, too, with wet and stormy weather forecast for the next 10 days.

Accumulated totals of over 50mm are possible in parts of most states and large areas of the country could be in line for more than 100mm.

The reason for Australia's sodden outlook is several broad-scale climate drivers are in their 'wet phases' for Australia at the moment.

On the eastern side of the country, a La Nia pattern is now well established in the Pacific Ocean.

At the same time, sea surface temperature closer to the east coast of Australia are generally above average for this time of year.

These two factors are combining enhance the amount of moisture in the atmosphere near northern and eastern Australia.

Orange's combined water storage levels are still at 100 per cent, with the city's water use climbing to 157 litres per person, per day. The water saving standards recommends a usage of 180 litres.

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