Ludlow's jumps meeting on Thursday is under threat from frost, with an inspection called for 8am on Wednesday.
Although the course was raceable on Tuesday, with the going described as soft, temperatures are set to dip ahead of the fixture.
"We've got frost forecast tonight and the temperatures we are forecast are for it to stay below freezing effectively," said clerk of the course Bob Davies.
"If the forecast is right we will struggle. It is forecast to be minus 3C tonight and a maximum of minus 1C tomorrow. With those temperatures, the chances are remote. We need it to rise above what is forecast."
Thursday's meeting at Market Rasen is already off, officials having been left with no option but to abandon due to snow on the track. The course is completely covered by snow and there is no hope of sufficient improvement with temperatures set to remain well below freezing for the next two nights.
Michael Prosser, regional head of racing for the east for Jockey Club Racecourses, is overseeing matters and called off the card following a noon inspection on Tuesday.
He said: "We've got two inches of snow on the ground and the forecast tells us temperatures could get down to minus 4C or minus 5C tonight.
"It is due to be even colder tomorrow night, so I'm afraid there is no possibility of racing and we've had to abandon the meeting."
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