Newmarket report the ground to have dried out on Wednesday to good to soft ahead of this weekend's QIPCO Guineas Festival.
The track has enjoyed a spell of breezy and warmer weather, which has allowed the course to dry out.
Director of Racing Michael Prosser said on Wednesday afternoon: "The GoingStick reading at 2.00pm today was 6.8 from 6.1 yesterday and the ground is now Good to Soft. There has been a stiff breeze, particularly this afternoon, and the Rowley Mile course has shown its drying qualities.
"The forecast is for overnight rain into Thursday morning but there is some uncertainty regarding timings and quantities. We are predicted to receive 6 to 8 millimetres of rain before it clears away early on Thursday afternoon.
"That is expected to be the last significant rainfall before the QIPCO Guineas Festival. The forecast is largely dry for Friday, Saturday and Sunday with the possibility of light, isolated showers. It will, however, be cooler with a north-easterly breeze.
"If we get the anticipated quarter of an inch of rain between this evening and Thursday lunchtime, it will put the ground back to soft. But should the forecast for Friday and Saturday prove correct, the ground will inevitably improve again ahead of the start of the meeting."