The Department of Infrastructure says the road from the Creg Ny Baa Hotel to Hillberry has now reopened to traffic.
On Facebook, it says the route, along with the Creg ny Baa Back Road, has been treated with salt and is now passable with care.
However, the Mountain Road itself remains closed from Ramsey to the Cregy ny Baa.
The DOI says it'll review the situation tomorrow morning.
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