Racing will go ahead at Sedgefield and Huntingdon today as planned after fears of overnight frost failed to materialise.
A precautionary inspection had been planned for 8.30am at Sedgefield but officials at the Country Durham track were able to cancel that check.
Clerk of the course Phil Tuck said: "Temperatures didn't dip as low as forecast.
"It's not going to be the warmest of days, with a bit of a wind chill and we might catch an odd shower, but we're fine."
A precautionary inspection had also been scheduled for 8am at Huntingdon with the forecast of a cold night.
But clerk of the course Sulekha Varma said: "It's all fine, there's no frost and the sun is out.
"Temperatures dipped a bit (after daylight) but it's still above freezing.
Update:
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