Cheltenham passed an initial 8am inspection on Friday morning but a further precautionary check at 7am on Saturday has been called.
Staff at the track have been battling the elements all week as they try to get the important Trials Day meeting to go ahead.
Lingfield's meeting on the all-weather is also subject to a 7am inspection due to the threat of snow. As was the case earlier in the week, groundstaff will be working the track overnight to try to prevent the snow from settling on the track.
The Cheltenham course has been protected from frost for well over a week by covers, but snow that fell on top of the covers was causing some concern. That has now been cleared and clerk of the course Simon Claisse reports the track fit for racing, but will check again on raceday morning.
The track tweeted: "Passed the inspection and confident of racing. Precautionary inspection at 7am Sat just in case local weather forecast is incorrect. Some snow forecast for late afternoon followed by rain. Frost covers coming off this afternoon."
Cheltenham communications manager Andy Clifton said: "The course is fit to race and we will be taking the covers off this afternoon, but we have called a precautionary check for 7am. The situation is that we are forecast a little bit of snow around teatime today which is then due to be followed by a band of rain.
"Given the more severe weather which is forecast across the country later today, we felt it prudent to call a precautionary inspection just in case our local forecasts are wrong.
"If the forecast is right, which they have largely been this week, I think we might be able to give the meeting the go-ahead before 7am tomorrow. If the forecast is right, we would be extremely confident of racing tomorrow."
Should Cheltenham suffer any unexpected weather problems, the track also has the option of delaying the meeting until Sunday. Trainers will be required to declare their horses for Saturday and then declare them again for Sunday as prize money levels would be reduced that day.
Clifton added: "The whole point of us having that ghost card, even though we are confident of racing, was to give us the option of Sunday. If there is some unexpected problem overnight, we have the option to wait until Sunday."
30 October 2014Aktabantay out of Breeders' Cup
Tearless secures Good Friday ticket
Overnight stay for Johnson
Crawford banks on Izzini progress
Toast could make Spencer think
Tearless takes Lingfield honours
Road charts route to Royal riches
Johnson taken to hospital
Grece excels at Saint-Cloud
Hawk given Greatwood option
Royal summons for Apache
Hannon: Early speed key for Osaila
Bowe takes aim at WKD bullseye
Hootenanny 'smoking' for BC mission
Avenue roads lead to Newmarket
Shu to be kept busy
Scu sweet on Sensation Ascot raid
Murtagh succumbs to Cup charms
Dandino to stay in Australia
Glance denied Mackinnon defence
Bailey ace rules Supreme at Taunton
O'Brien hit by Magician blow
Diablo in big-race picture
Buckley raises Toast to Osborne
Pastille seeking four-timer
Conti all set for Charlie Hall
Barnes out to storm Saint-Cloud
Williams issues Buywise warning
Lynam reveals Slade stalls fears
29 October 2014Lame Magician out of Breeders' Cup
Diablo in big-race picture
Mullins enters strong Hennessy team
Damaged hock behind Estid reverse
Eckhart team rocked by injury blow
Hunt Ball makes Power play
Morgiana a T bone of contention
Kirby ponders Buttons French raid
Glance camp turn to Williams
Wohler trusts 'professional' Moore
Red alert to Cup challenge
Head targets more Mile glory
Mile hope Toronado in 'great form'
Telescope camp banking on Moore
Twiston-Davies link excites Moore
Flying third to Bob on hurdling bow
Harden to test top staying waters
Godolphin take share in Belardo
Mullins has big guns at Down Royal
Annacotty set for Kempton return
Powell and Bradley cleared
28 October 2014Fingal camp on weather watch
More injury woe for Popham
Dickin unveils Thomas gameplan
Power stalls in Flemington spin
Toast drawn nine in BC Classic
My Ambivalent passed fit by vets
Harry out to bring House down
Three and easy for ton-up Hanagan
Wood carves out Galway verdict
More Of That in Wetherby frame
Big guns confirmed for Charlie Hall
Byron pencilled in for Far East
Newbury reverts to original title
Magician to stay in the US
Henderson considers hurdles for Bob
27 October 2014Mountainous back on National trail
Ground to dictate Gold run
Elite aim for Rendezvous
Classic dreams at Leopardstown
Smullen celebrates seventh title
Cheltenham target for Module
Pete shows his Aintree mettle
Royal-Oak double for Boistron
Starchitect in surprise strike
New One given Haydock mission
Balding excited by Park prospects
Sights set high for Crafty