This morning's seen a dusting of snow on the Mountain Road, which is expected to remain shut until midday on Monday, January 5.
On Facebook, the Department of Infrastructure says it follows a further safety review.
It's currently closed from Ramsey to the Creg-Ny-Baa because of the snowy conditions.
Meanwhile a yellow weather warning for snow and ice is in place across the Island until 12pm today, Friday January 2.
Several Douglas roads to shut for drone show this week
No new plans for flood defences, says minister
Airport passenger figures are down
Newborns to get free books
Northern road closure this week
Bus strike forces charity dog walk to reschedule
K-pop circus arrives in Douglas!
Firm under investigation over waste storage