Officials at Chepstow will hold a precautionary inspection at 8am on raceday morning ahead of Saturday's meeting.
The threat of frost overnight has put the track on alert, although the course was raceable on Friday morning and it is hoped racing will go ahead. The going was described as heavy, soft in places.
It is a similar story with cold temperatures at Kelso, where Sunday's card is subject to a precautionary inspection at 7.30am on the day.
The fixture is headlined by the Persimmon Homes Scottish Borders National Handicap Chase, with the going good, good to soft in places.
The Betfred Peterborough Chase meeting at Huntingdon also sees a precautionary inspection, at 7am.