Lithgow is set to get up to half its May monthly average rainfall over next three days.
Lithgow has 100 per cent chance of rain on Friday, May 19 and it will be the start of a wet weekend, according to the Bureau of Meteorology.
Rain, 15-22mm, is expected on Friday with up to another 10mm on Saturday.
On Sunday it will still start clearing but you can expect showers to continue into next week.
The Bureau records Lithgow’s May average rainfall as 63mm.
The good news is that the temperatures will be remaining above the May average during the rainfall. It will be cool, between 7 and 11 degrees on Friday, but not freezing.