Route had been closed since early hours of Tuesday
The Mountain Road is open again after the Department of Infrastructure cleared the road surface.
The route closed in the early hours of yesterday morning due to snow and ice.
The road has been gritted, while a plough was also used this morning.
Tynwald announces death of Douglas North MHK
Tributes paid to John Wannenburgh
Manx Utilities 'deeply saddened' by death of chairman
Wannenburgh praised for 'exceptional' leadership
"Tynwald will be a less colourful place without John" says president
Watterson describes Wannenburgh as 'devoted' to constituents
Douglas North MHK pays tribute to 'amazing friend'
Wannenburgh had 'biggest heart of anyone I've ever met' says Ashford