Today's meeting at Kempton has been abandoned due to "ice crystals" in the track.
Sunday's meeting at the Sunbury venue was called off due to snow and officials had planned to inspect the track at 9am.
However, they have made an earlier call with the track unraceable due to "ice crystals".
Earlier, Wolverhampton passed a 6.30am inspection.
Elsewhere, Wednesday's meeting at Catterick and Thursday's meeting at Warwick have been abandoned.