The Department of Infrastructure says the Mountain Road will remain closed until at least tomorrow night, along with two other routes on Snaefell.
Overnight snowfall has set back reopening efforts, with previously cleared areas iced over and covered in fresh snow.
The DOI says all three will stay shut until at least midnight tomorrow.
It says it will set out its plans for gritting the rest of the Island's roads later.
Repairs on Peel Power Station to get underway
Manx Utilities says it's hoping to start fitting replacement flues to Peel Power Station next week.
Manx Care doctor survey to be discussed by Tynwald
How will the Government respond to a damning survey by the British Medical Association?
Weather warning for snow tonight
A yellow weather warning about more freezing weather will come into force later.
MHK queries safety at primary school in Ballabeg
An MHK will raise the issue of safety outside a primary school in the south of the Island next week.
Gales put two ferry sailings at risk tonight
Two Steam Packet Company sailings overnight could be facing disruption.
Should the Island throw a birthday party for Barry Gibb?
As tourism business owner has suggested the Isle of Man hold a huge event to mark Sir Barry Gibb's 80th birthday this year.
Warning issued over icy roads
Ice and frost is causing havoc on the Island's roads this morning.
High ground could see 4 inches of snow on Saturday night
The Island's Met Office has issued another weather warning for snow and sleet over the weekend.
