A pitch inspection will take place at Roots Hall at 10:30am on Friday morning ahead of Saturday's League 2 clash with Plymouth Argyle.
The surface has been covered all week, but having seen temperatures drop as low as -9 overnight, the covers have been unable to prevent the pitch from becoming frozen.
Chief Executive Steve Kavanagh said: "As you are aware it has been extremely cold here over the last few days and more cold weather is expected between now and Saturday.
"The pitch is of concern to us as unfortunately the covers have been unable to prevent it from becoming frozen, especially at the South Stand end, as they only work up to a certain temperature.
"With Plymouth facing a long journey on Friday we felt it was important to get the inspection early on Friday to prevent them from making a wasted journey, should it not be playable."
We will update you as soon as the pitch inspection has taken place.